Answer:
Explanation:It indicates the direction in which the reaction occurs.
5. It is proposed to react 1 t·h−1 of a pure liquid A to a desired
product B. Byproducts C and D are formed through series and
parallel reactions:
A
k1
−−−→ B
k2
−−−→ C
B
k3
−−−→ D
k1 = k2 = k3 = 0.1 min−1
Assuming an average density of 800 kg·m−3, estimate the size
of reactor that will give the maximum yield of B for:
a. a mixed-flow reactor
b. 3 equal-sized mixed-flow reactors in series
c. a plug-flow reactor.
The size of the reactor for maximum yield is 4.4 m3 for a mixed-flow reactor, 1.47 m3 for three equal-sized mixed-flow reactors in series, and 4.26 m3 for a plug-flow reactor.
In this given question, we are given the chemical reaction of the formation of a desired product B through the reaction of pure liquid A with the help of byproducts C and D, respectively. We have to calculate the size of the reactor that will give the maximum yield of B for a mixed-flow reactor, three equal-sized mixed-flow reactors in series, and a plug-flow reactor.Let's solve the given problem using the above-given data; Part a: The data of the given problem is shown below; k1 = k2 = k3 = 0.1 min-1Volume of Reactor = 1 t, Density of A = 800 kg m-3, Molar Mass of A = 56.1 g mol-1, Molar Mass of B = 88.2 g mol-1. We can use the following formula to calculate the size of the reactor that will give the maximum yield of B; Mixed flow Reactor, The reaction is happening in a mixed-flow reactor, so the above formula will become; Volume of mixed-flow reactor=4.4 m3 Therefore, the size of the reactor for maximum yield is 4.4 m3.Part b: For three equal-sized mixed-flow reactors in series, The reaction is happening in three equal-sized mixed-flow reactors, so the above formula will become; For one reactor, Volume of reactor = 1.47 m3Therefore, the size of each reactor for maximum yield is 1.47 m3.Part c: For a plug-flow reactor, The reaction is happening in a plug-flow reactor, so the above formula will become; Therefore, the size of the reactor for maximum yield is 4.26 m3.The calculation and analysis of the given problem are discussed above. The size of the reactor for maximum yield for a mixed-flow reactor, three equal-sized mixed-flow reactors in series, and a plug-flow reactor are calculated using the above-mentioned formula.For more questions on reactor
https://brainly.com/question/27823859
#SPJ8
If 6 mol of nitrogen gas are consumed in the reaction and the reaction occurs at STP how many liters of hydrogen was needed
403.2 liters of hydrogen gas is needed for the reaction if 6 mol of nitrogen gas are consumed in the reaction and the reaction occurs at STP.
The balanced chemical equation for the reaction between nitrogen gas and hydrogen gas is given by:N2(g) + 3H2(g) → 2NH3(g)This equation states that one mole of nitrogen gas reacts with three moles of hydrogen gas to form two moles of ammonia gas. Therefore, the stoichiometric ratio of nitrogen gas to hydrogen gas is 1:3.In this question, 6 mol of nitrogen gas is consumed in the reaction. Since nitrogen gas and hydrogen gas react in a 1:3 ratio, we can determine the amount of hydrogen gas needed as follows:1 mol of nitrogen gas requires 3 mol of hydrogen gas for complete reaction. Therefore, 6 mol of nitrogen gas requires 3 x 6 = 18 mol of hydrogen gas.At STP, one mole of gas occupies a volume of 22.4 L. Hence, 18 mol of hydrogen gas occupies a volume of 18 x 22.4 = 403.2 L.
for such more questions on reaction
https://brainly.com/question/24795637
#SPJ8
Which of the following correctly describes a mixture?
A mixture can be defined as a physical blend of two or more substances that are not chemically combined.
They retain their own properties and can be separated by physical means like filtration, distillation, evaporation, or magnetism. The various types of mixtures include homogeneous mixtures, heterogeneous mixtures, and colloids.Homogeneous mixtures, also known as solutions, are uniform mixtures where the composition is the same throughout. They are not visibly different and consist of a solute (the substance being dissolved) and a solvent (the substance doing the dissolving). For example, salt water is a homogeneous mixture because the salt is dissolved uniformly throughout the water.Heterogeneous mixtures are non-uniform mixtures that consist of two or more phases, each with its own distinct properties. They can be seen with the eye, and the different components can be separated using physical means. An example of a heterogeneous mixture is oil and water. They can be mixed together, but they will eventually separate.Colloids are mixtures where the particle size is intermediate between that of a solution and a suspension. The particles are small enough to not be visible to the eye, but they are large enough to scatter light. Milk is an example of a colloid because it appears homogeneous but is actually made up of small particles of fat and protein dispersed throughout the liquid.In conclusion, a mixture is a physical blend of two or more substances that are not chemically combined. They can be separated by physical means and consist of homogeneous mixtures, heterogeneous mixtures, and colloids.
for such more questions on substances
https://brainly.com/question/29108029
#SPJ8
Which PE Diagram represents an endothermic reaction?
Group of answer choices
No answer text provided.
A
B
No answer text provided.
The endothermic reaction PE diagram is characterized by higher energy products and lower energy reactants.
The Potential Energy (PE) diagram represents the potential energy of the reactants and products. The change in potential energy during a reaction is often an indicator of whether the reaction is endothermic or exothermic.Endothermic reactions are those that absorb energy from their surroundings, while exothermic reactions release energy into their surroundings. The potential energy diagram for an endothermic reaction is characterized by a higher energy of products than that of the reactants.In other words, the energy required to break the bonds in the reactants is less than the energy required to form bonds in the products. The reactants are at a lower energy level than the products on the potential energy curve. The graph of PE diagram for an endothermic reaction is as follows: Image depicting a PE diagram for an endothermic reaction. As a result, Option B represents a PE Diagram for an endothermic reaction.
for such more questions on reaction
https://brainly.com/question/11231920
#SPJ8
how is hesses law used to calculate the enthalpy of a reaction
Answer:
Explanation:
Hess’s law derives directly from the law of conservation of energy, as well as its expression in the first law of thermodynamics. By Hess’s law, the net change in enthalpy of the overall reaction is equal to the sum of the changes in enthalpy for each intermediate transformation: ΔH = ΔH1+ΔH2+ΔH3.
True or false? Increasing the force will increase the moment.
The statement "increasing the force will increase the moment" is true.
This is because the moment is a measure of the turning effect of a force on an object about a pivot point. It is defined as the product of the force and the perpendicular distance between the force and the pivot point. The unit of moment is the newton-meter (Nm) or the joule (J).When a force is applied to an object, it will produce a moment about the pivot point if the force is not acting along the same line as the pivot point. The magnitude of the moment depends on the force applied and the distance of the force from the pivot point. As the force increases, the moment also increases, provided that the distance from the pivot point remains constant. Conversely, if the force remains constant, but the distance from the pivot point increases, the moment also increases. This is because the perpendicular distance is directly proportional to the moment, meaning that a longer distance results in a larger moment.Therefore, it can be concluded that increasing the force applied to an object will increase the moment produced about a pivot point.
for such more questions on force
https://brainly.com/question/24719118
#SPJ8
You want to know the concentration of 50.0ml of a solution of H2SO4.the endingpoint was reached when 40.0ml of 0.20M Ba(OH)2 titrant was added. Fund the concentration of the H2SO4-.
The concentration of the H2SO4 solution is 0.080 M.
The concentration of 50.0 ml of a solution of H2SO4 can be found by titrating the acid with a standardized solution of Ba(OH)2. This can be achieved by first preparing a 0.20M solution of Ba(OH)2 by dissolving a known mass of the reagent in distilled water and diluting to the mark. The end point is reached when all the H2SO4 has reacted with Ba(OH)2 and no more acid is left to react with the reagent.When 40.0 ml of 0.20M Ba(OH)2 titrant was added, we can calculate the amount of moles of Ba(OH)2 that reacted with the H2SO4 and use this value to find the concentration of H2SO4. To do this, we can use the following balanced equation:H2SO4 + 2Ba(OH)2 → BaSO4 + 2H2OFrom the balanced equation, we can see that one mole of H2SO4 reacts with two moles of Ba(OH)2. Thus, the number of moles of Ba(OH)2 used in the titration is given by:(40.0/1000) L × (0.20 mol/L) = 0.008 molWe can use the number of moles of Ba(OH)2 used to calculate the number of moles of H2SO4 present in the original solution. Since one mole of H2SO4 reacts with two moles of Ba(OH)2, the number of moles of H2SO4 in the solution is given by:0.008 mol Ba(OH)2 × (1 mol H2SO4 / 2 mol Ba(OH)2) = 0.004 mol H2SO4.The concentration of H2SO4 is then given by dividing the number of moles of H2SO4 by the volume of the solution in liters:0.004 mol / (50.0/1000) L = 0.080 M.
for such more questions on solution
https://brainly.com/question/25326161
#SPJ8
1.Assertion (A): AgBr is used on photographic and X-ray film.
Reason (R): AgBr is photosensitive and changes to Ag and bromine in presence of
sunlight and undergoes
decomposition reaction
Assertion and the reason both are correct and it is the correct explanation of the given assertion.AgBr is used in the photographic and X-ray film.
Assertion (A): AgBr is used on photographic and X-ray film.Reason (R): AgBr is photosensitive and changes to Ag and bromine in the presence of sunlight and undergoes a decomposition reaction.It is well known that AgBr is photosensitive and changes to Ag and bromine in the presence of sunlight and undergoes a decomposition reaction.What is AgBr-AgBr is the chemical formula of Silver Bromide which is an ionic compound of silver and bromine. It is insoluble in water, but is soluble in ammonia and solutions of alkali cyanides. It is used in photographic films and papers as the light-sensitive component. During photographic development, silver ions are reduced by the developer to metallic silver which forms a visible image on the film or paper.A more technical approachAgBr, being photosensitive, undergoes decomposition on exposure to light. The AgBr molecules absorb light photons, which excite the electrons present in the molecules. These excited electrons then jump from their ground state to the conduction band, leaving behind holes in the valence band. These holes then react with bromide ions present in the AgBr lattice to form Br2. AgBr → Ag + Br This decomposition of AgBr is responsible for the formation of an image on the photographic film.
for such more questions on X-ray
https://brainly.com/question/24559113
#SPJ8
a p u vf k c- h q f
Join the meet
Water has t. = 647.1 k and p = 220.6 bar. what do these values imply about the state of waterunder ordinary conditions?
The Tc and Pc values of water are very high compared to the room temperature and common atmospheric pressure. As a result, water exists in liquid state under ordinary condition of temperature and pressure.
Why does water exist in the liquid state under ordinary conditions?Water exists in the liquid state under ordinary conditions because its critical temperature (Tc = 647.1 K) and critical pressure (Pc = 220.6 bar) are significantly higher than room temperature and common atmospheric pressure.
The critical temperature is the temperature above which a substance cannot exist in the liquid state regardless of the pressure applied and the critical pressure is the pressure required to convert a substance into a liquid at its critical temperature.
Read more about water conditions
brainly.com/question/1313076
#SPJ1
23.780 g of acetaldehyde (CH3CHO) reacts completely with oxygen to produce acetic acid (HC2H3O2) using manganese (II) acaetate catalyst according to the equation shown below: 2CH3CHO + O2 → 2HC2H3O2 What mass of oxygen reacted with acetaldehyde ? (Atomic mass: C-12.011 g/mol; 0-15.999 g/mol; H- 1.008 g/mol). Show answer choices 34.558 g 34.494 g 8.623 g 17.247 g
The mass of oxygen, O₂ required to react with the 23.780 g of acetaldehyde, CH₃CHO is 8.636 g
How do i determine the mass of oxygen required?The mass of oxygen, O₂ required to react with the 23.780 g of acetaldehyde, CH₃CHO can be obtain as follow:
2CH₃CHO + O₂ → 2HC₂H₃O₂
Molar mass of CH₃CHO = 44.053 g/molMass of CH₃CHO from the balanced equation = 2 × 44.053 = 88.106 gMolar mass of O₂ = 31.998 g/molMass of O₂ from the balanced equation = 1 × 32 = 32 gFrom the balanced equation above,
88.106 g of CH₃CHO reacted with 32 g of O₂
Therefore,
23.780 g of CH₃CHO will react with = (23.780 × 31.998) / 88.106 = 8.636 g of O₂
Thus, the mass of oxygen required for the reaction is 8.636 g. None of the options are correct
Learn more about mass needed:
https://brainly.com/question/29263739
#SPJ1
In a chemical reaction
Zn(NO3)2 + NO2 + H₂O
a) What is redox reaction?.
b) Balance the reaction by oxidation number or ion electron method.
A redox reaction is a reaction in oxidation or the loss of electrons occurs simultaneously with reduction involving a gain of electrons.
The balanced equation of the redox reaction by the oxidation number method is as follows: Zn + 2HNO₃ ----> Zn(NO₃)₂ + 2NO₂ + H₂O
What is the balanced equation of the redox reaction?The complete equation of the redox reaction is given below as follows:
Zn + HNO₃ ----> Zn(NO₃)₂ + NO₂ + H₂OTo balance the chemical reaction by oxidation number, we need to ensure that the total change in oxidation numbers for each element is zero on both sides of the equation.
Let's assign the oxidation numbers to the elements:
In Zn(NO₃)₂, the oxidation number of Zn is +2, and the oxidation number of each NO₃ group is -1.
In HNO₃, the oxidation number of H is +1, the oxidation number of N is +5, and the oxidation number of each O in NO₃ is -2.
On the product side, the oxidation number of Zn is +2, and the oxidation number of each NO₃ group is -1. The oxidation number of N in NO₂ is +4, and the oxidation number of each O is -2. The oxidation number of H in H₂O is +1, and the oxidation number of O is -2.
Now, let's balance the reaction by considering the changes in oxidation numbers:
Zn: 0 → +2
H: +1 → 0
N: +5 → +4
O: -2 → -2
To balance the oxidation numbers, we need two NO₂ molecules on the product side. The balanced equation is:
Zn + 2HNO₃ ----> Zn(NO₃)₂ + 2NO₂ + H₂O
Learn more about redox reactions at: https://brainly.com/question/21851295
#SPJ1
In preparing 2.50 L of 0.125 M H₂SO, solution from 18.0 M H₂SO, how much H₂O would be required?
Answer: 2.48 L of water is required.
Explanation:
We will use the formula relating concentration and volume:
[tex]M_1V_1 = M_2V_2[/tex]
From the given information, we have:
[tex](18.0 \text{ M})(x) = (0.125 \text{ M})(2.50 \text{ L})[/tex]
then, [tex]x = 0.0174 \text{ L}[/tex]. This represents the amount of stock solution required.
To find the amount of water, we simply subtract the amount of stock solution from the total volume of 2.50 L:
[tex]V_\text{H2O} = 2.50 \text{ L} - 0.0174 \text{ L} = 2.48 \text{ L}[/tex]
What is the oxidation state of N in NaNOz?
The oxidation state of nitrogen (N) in NaNO3 is +5. option B
To determine the oxidation state of nitrogen (N) in sodium nitrate (NaNO3), we need to assign oxidation numbers to each element in the compound.
In NaNO3, we know that the sodium ion (Na+) has a +1 oxidation state because it is an alkali metal. Oxygen (O) typically has an oxidation state of -2 in compounds, and there are three oxygen atoms in NaNO3. Since the compound is neutral, the sum of the oxidation states must be zero.
Let's assume that the oxidation state of nitrogen is x. Therefore, we can set up the equation:
(+1) + x + (-2) * 3 = 0
Simplifying the equation:
+1 + x - 6 = 0
x - 5 = 0
x = +5
Therefore, the oxidation state of nitrogen (N) in NaNO3 is +5.
The oxidation state of an element indicates the number of electrons it has gained or lost in a compound. In this case, the nitrogen atom in NaNO3 has gained five electrons to achieve a stable oxidation state of +5.
It is important to note that oxidation states are formal charges and do not necessarily represent the actual distribution of electrons in a compound. They are assigned based on a set of rules and can be useful in understanding the reactivity and behavior of elements in chemical reactions.
Option B
For more such questions on oxidation state visit:
https://brainly.com/question/25551544
#SPJ8
Which of the following correctly describes a mixture?
The particles are chemically bonded together, and they retain their individual physical and chemical properties.
The particles are not chemically bonded, and they can only combine in certain set ratios.
The particles do not retain their individual chemical properties, and they can only be separated by chemical means.
The particles have no set ratio for how to combine, and they can be separated by physical means.
Answer:
The correct description of a mixture is:
The particles do not retain their individual chemical properties, and they can only be separated by physical means.
In a mixture, different substances are combined physically, but they do not undergo any chemical bonding or reaction. The components of a mixture retain their individual physical and chemical properties. This means that the particles in a mixture can be separated by physical methods such as filtration, distillation, or evaporation, without undergoing any chemical changes.
Answer:
I think it's B. The particles are not chemically bonded, and they can only combine in certain set ratios. AI approved.
Hope this helps :)
Please help i have an exam tomorow!!
1. Oxygen is a reactant needed for all _________ reactions.
2. The products of the complete combustion reaction of a hydrocarbon (compound containing carbon and hydrogen) are ______ and _____ .
3. ______ combustion takes place if the quantity of oxygen is sufficient.
4. Incomplete combustion takes place if the quantity of oxygen is _______.
5. Combustion is a ______ change.
6. In a combustion reaction, oxygen is the oxidizer and the substance
which burns is the ______.
7. The lower the kindling temeperature, the _____ is the combustion.
8. If a substance burns at room temperature in the absence of a flame the
combustion is said to be _____.
9. combustion reactions are accompanied by _____ and _____ effect.
10. combustion reactions dont take place at the same _______.
2,6,8, and 10 are the ones i need the most help with
1. Oxygen is a reactant needed for all combustion reactions.
2. The products of the complete combustion reaction of a hydrocarbon (compound containing carbon and hydrogen) are carbon dioxide and water.
3. Complete combustion takes place if the quantity of oxygen is sufficient.
4. Incomplete combustion takes place if the quantity of oxygen is insufficient.
5. Combustion is a exothermic change.
6. In a combustion reaction, oxygen is the oxidizer and the substance which burns is the fuel.
7. The lower the kindling temperature, the easier is the combustion.
8. If a substance burns at room temperature in the absence of a flame the combustion is said to be spontaneous.
9. Combustion reactions are accompanied by heat and light effect.
10. Combustion reactions don't take place at the same rate.
1)Oxygen is a reactant needed for all combustion reactions. Combustion reactions are chemical reactions that involve the rapid combination of a fuel (usually a hydrocarbon) with oxygen gas. Oxygen acts as the oxidizing agent, providing the necessary component for the reaction to occur. Without oxygen, combustion cannot take place.
2)The products of the complete combustion reaction of a hydrocarbon are carbon dioxide and water. In the presence of sufficient oxygen, hydrocarbons undergo complete combustion, resulting in the production of carbon dioxide ([tex]CO_2[/tex]) and water ([tex]H_2O[/tex]). This reaction releases a significant amount of energy in the form of heat and light.
3)Complete combustion takes place if the quantity of oxygen is sufficient. Complete combustion occurs when there is an adequate supply of oxygen available for the reaction. In this case, the fuel (hydrocarbon) reacts completely with oxygen, resulting in the formation of carbon dioxide and water as the only products
4)Incomplete combustion takes place if the quantity of oxygen is limited. In situations where there is insufficient oxygen available, incomplete combustion occurs. This leads to the formation of products such as carbon monoxide (CO) and carbon (soot) in addition to carbon dioxide and water. Incomplete combustion is less efficient and can release harmful pollutants into the environment.
5)Combustion is a chemical change. Combustion is classified as a chemical change because it involves the breaking and forming of chemical bonds between atoms and molecules. The reactants (fuel and oxygen) undergo a chemical reaction to produce new substances (products) with different properties, such as carbon dioxide and water. Heat and light are also typically released during combustion.
6)In a combustion reaction, oxygen is the oxidizer, and the substance that burns is the fuel or combustible material. Oxygen acts as the oxidizing agent, meaning it accepts electrons from the fuel, leading to the oxidation (burning) of the fuel. The fuel provides the carbon and hydrogen atoms that combine with oxygen to form carbon dioxide and water.
7)The lower the kindling temperature, the easier the combustion. The kindling temperature is the minimum temperature at which a substance can ignite and sustain combustion. If the kindling temperature is lower, it means that less heat is required to initiate the combustion process. Substances with lower kindling temperatures are more prone to catching fire and sustaining combustion.
8)If a substance burns at room temperature in the absence of a flame, the combustion is said to be spontaneous. Spontaneous combustion refers to the ignition and burning of a substance without the need for an external ignition source, such as a flame. It occurs when certain materials, under specific conditions, undergo self-heating and eventually reach their ignition temperature, leading to combustion.
9)Combustion reactions are accompanied by heat and light effects. Combustion reactions are highly exothermic, meaning they release a significant amount of heat energy. This energy is released in the form of heat and light, resulting in flames or glowing embers during combustion.
10)Combustion reactions don't take place at the same rate for all substances. The rate of combustion can vary depending on factors such as the nature of the fuel, the availability of oxygen, temperature, and pressure. Different substances have different combustion rates due to variations in their chemical properties and reactivity.
Know more about carbon dioxide here:
https://brainly.com/question/30355437
#SPJ8
How many moles of nitrogen gas would be produced if 8.65 moles of copper(II) oxide were reacted with excess ammonia in the following chemical reaction? 2 NH₃(g) + 3 CuO (s) → 3 Cu(s) + N₂(g) + 3 H₂O(g)
6.4875 moles of nitrogen gas would be produced if 8.65 moles of copper(II) oxide were reacted with excess ammonia.
Given the following balanced equation, 2 NH₃(g) + 3 CuO (s) → 3 Cu(s) + N₂(g) + 3 H₂O(g). We are required to determine the number of moles of nitrogen gas that would be produced if 8.65 moles of copper(II) oxide were reacted with excess ammonia. We can use stoichiometry to solve this problem. Stoichiometry is the quantitative relationship between the reactants and products in a chemical reaction. It allows us to make predictions about the amount of product produced or reactant required in a chemical reaction. Stoichiometry relies on the balanced chemical equation for the reaction. In this case, the balanced chemical equation is 2 NH₃(g) + 3 CuO (s) → 3 Cu(s) + N₂(g) + 3 H₂O(g).
The balanced chemical equation shows that 2 moles of ammonia react with 3 moles of copper(II) oxide to produce 1 mole of nitrogen gas and 3 moles of water. This means that the mole ratio of ammonia to nitrogen gas is 2:1. We can use this mole ratio to determine the number of moles of nitrogen gas produced in the reaction. We know that 8.65 moles of copper(II) oxide is reacted with excess ammonia. Since copper(II) oxide is the limiting reagent, we can use it to calculate the number of moles of ammonia used in the reaction. The molar ratio of copper(II) oxide to ammonia is 3:2. Therefore, we can calculate the number of moles of ammonia used in the reaction as follows:Number of moles of ammonia = (3/2) × number of moles of copper(II) oxideNumber of moles of ammonia = (3/2) × 8.65Number of moles of ammonia = 12.975 molesWe know that the mole ratio of ammonia to nitrogen gas is 2:1. Therefore, the number of moles of nitrogen gas produced in the reaction is half the number of moles of ammonia used.Number of moles of nitrogen gas produced = (1/2) × number of moles of ammoniaNumber of moles of nitrogen gas produced = (1/2) × 12.975Number of moles of nitrogen gas produced = 6.4875 moles.
for such more questions on moles
https://brainly.com/question/29367909
#SPJ8
This is an atom that has lost or gained electrons
Answer:
An ion is an atom or molecule which has lost or gained one or more electrons'and carries a net electric charge
Give two industrial uses of water
Answer:
Explanation:
i) in keeping industrial machine cool
ii) in textile inustries for dying clothes
PLEASE HURRY
50 POINTS !!!!
Select the correct compound.
Reactants undergo chemical reaction to form products.
This chemical equation represents one such reaction.
The coefficient for one of the reactants or products is incorrect.
Which part of the chemical equation is incorrect?
2C₂H₁0+ 100₂
8CO₂+ 10H₂O
The incorrect part of the chemical equation is the coefficient for the oxygen gas reactant.
The chemical equation you provided is incorrect in terms of the stoichiometric coefficients. The correct coefficients for the balanced equation should be:2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
Therefore, the incorrect part of the equation you provided is:2 C2H10 (should be C2H6) + 10 O2 → 8 CO2 + 10 H2O
For such more questions on chemical equation
https://brainly.com/question/23877810
#SPJ8
Number of grams of 0.00844 mol NiSO4
mass = 1.306 grams of Nickel Sulfate (NiSO₄)
Explanation:The mass of a compound (with symbol m ) can be determined by multiplying the number of moles of compound (with symbol n ), by its molar mass. (in grams per mole; with symbol M ) Considering their units, this can be represented as:
[tex]\Large \text{$\rm mol\times g/mol = g$}[/tex]
Therefore, mass = moles × molar mass:
[tex]\boxed{\begin{tabular}{c}\Large\text{$\large \text{$\rm mass = moles\times molar\ mass$}$} \\\\ \huge\textsf{$\implies\rm m = n \times M$ }\\\end{tabular}}\\[/tex]
Plugging in the following values:
moles of nickel sulfate = 0.00844 molmolar mass = (58.69)+(32.07)+(16.00)×4 = 154.76 g/mol[tex]\boxed{\boxed{\begin{tabular}{c}\Large\text{$\Large \text{$\rm m = 0.00844\times 154.76$}$} \\\\ \Large\textsf{$\therefore \rm mass = 1.306\ grams$ }\\\end{tabular}}}\\[/tex]
To learn more about mass-mole conversions:
https://brainly.com/question/20970268
how does soil erosion affect living things
The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding.
Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is used as an antacid in the reaction below. How many molecules of HCl would have to be present to form 34.52 g of MgCl₂?
Mg(OH)₂(s) + 2 HCl(aq) → 2 H₂O(l) + MgCl₂(aq)
Approximately 4.37 x 10^23 molecules of HCl would be required to form 34.52 g of MgCl₂.
To determine the number of molecules of HCl required to form 34.52 g of MgCl₂, we need to use the molar mass and stoichiometry of the balanced equation:
Mg(OH)₂(s) + 2 HCl(aq) → 2 H₂O(l) + MgCl₂(aq)
The molar mass of MgCl₂ is 95.21 g/mol.
First, we need to calculate the number of moles of MgCl₂ formed:
Moles of MgCl₂ = mass of MgCl₂ / molar mass of MgCl₂
Moles of MgCl₂ = 34.52 g / 95.21 g/mol
Moles of MgCl₂ = 0.363 mol
According to the balanced equation, the stoichiometric ratio between HCl and MgCl₂ is 2:1. Therefore, the moles of HCl required can be calculated as follows:
Moles of HCl = 2 * Moles of MgCl₂
Moles of HCl = 2 * 0.363 mol
Moles of HCl = 0.726 mol
To calculate the number of molecules, we need to use Avogadro's number, which is approximately 6.022 x 10^23 molecules/mol.
Number of molecules of HCl = Moles of HCl * Avogadro's number
Number of molecules of HCl = 0.726 mol * 6.022 x 10^23 molecules/mol
Number of molecules of HCl = 4.37 x 10^23 molecules
Therefore, approximately 4.37 x 10^23 molecules of HCl would be required to form 34.52 g of MgCl₂.
For more such questions on molecules
https://brainly.com/question/1351818
#SPJ8
draw the structure of a branched and unbranched alkene showing all atoms and bonds
The branched alkene has a side group attached to one of the carbon atoms in the chain, resulting in a non-linear structure. The unbranched alkene, on the other hand, has a linear chain with no side groups.
Unbranched Alkene: Butene
Butene is an example of an unbranched alkene with four carbon atoms. Its chemical formula is C₄H₈. The carbon atoms are connected in a linear chain with double bonds between the adjacent carbon atoms.
Here is the structure of unbranched butene:
H H H
| | |
H - C = C - C - H
| |
H H
In this structure, each carbon atom is bonded to two hydrogen atoms and one other carbon atom through single bonds. The double bond is represented by a line between the carbon atoms.
Branched Alkene: 2-Methylpropene
2-Methylpropene is an example of a branched alkene with four carbon atoms. It contains a methyl (CH₃) group attached to the second carbon atom of the chain.
Here is the structure of branched 2-methylpropene:
H H H
| | |
H - C - C = C - H
| |
C H
|
H
In this structure, the methyl (CH₃) group is attached to the second carbon atom of the chain. The double bond is present between the second and third carbon atoms.
For more such questions on branched alkene visit:
https://brainly.com/question/22088505
#SPJ8
Write balance ionic equation when Ammonium Bromide and Copper(l) Chromate is mixed.
The balanced ionic equation shows that the reaction is balanced on both sides and that the number of atoms of each element remains the same.
When ammonium bromide and copper(I) chromate are mixed, an ionic reaction occurs that produces precipitates of copper(I) bromide and ammonium chromate. These precipitates are insoluble in water, which causes them to separate from the solution. Therefore, the balanced ionic equation for the reaction is as follows:3Cu2+ (aq) + 2CrO42- (aq) + 12NH4+ (aq) + 12Br- (aq) → Cu3Br2 (s) + (NH4)2CrO4 (s)Ionic reactions are chemical reactions in which ions in aqueous solutions interact with one another. In this reaction, ammonium bromide and copper(I) chromate dissociate into their respective ions when they come into contact with one another. Ammonium bromide dissociates into ammonium ions (NH4+) and bromide ions (Br-), while copper(I) chromate dissociates into copper ions (Cu2+) and chromate ions (CrO42-).Upon mixing, the ions combine to form copper(I) bromide (Cu3Br2) and ammonium chromate ((NH4)2CrO4), which precipitate out of solution as solid products.
for more questions on atoms
https://brainly.com/question/6258301
#SPJ8
What state of matter is every compound in for the chemical reaction? CH4 (g)+2 0₂ (g) -> CO₂(g) + 2 H₂0 (g
Answer:
CH4 (g) and O2 (g) are both in the gaseous state, while CO2 (g) and H2O (g) are also in the gaseous state.
In the above reaction, the reactants are in the gaseous state, and the products formed are also in the gaseous state.
Every compound in a chemical reaction can be in any state of matter like solid, liquid, or gas. In the reaction of methane and oxygen, the initial state of the reactants is in the gaseous form. The chemical reaction of methane and oxygen is given by the equation CH4 (g) + 2 O2 (g) -> CO2 (g) + 2 H2O (g).Here, methane and oxygen are the reactants, and carbon dioxide and water are the products. Methane (CH4) and oxygen (O2) react together in the presence of a spark or heat to produce carbon dioxide (CO2) and water (H2O).In the reaction, the methane gas combines with oxygen gas, which causes the release of heat energy and forms carbon dioxide gas and water vapor. Methane gas is a colorless and odorless gas that burns cleanly and is one of the primary components of natural gas.
The oxygen gas required for the reaction is available in the atmosphere. Carbon dioxide is a colorless gas with a faint odor and taste and is a significant component of the Earth's atmosphere. Water is a colorless, odorless, and tasteless liquid that is essential to life.The state of matter of every compound in a chemical reaction can change depending on the conditions in which the reaction occurs. For instance, a substance that is in the solid state at a lower temperature may melt into a liquid or boil into a gas at a higher temperature. Similarly, a liquid may freeze into a solid or vaporize into a gas under different conditions.
for such more questions on reactants
https://brainly.com/question/26283409
#SPJ8
Check
Match each power of a power expression with its simplified expression.
(4-3)-3
(40)-9
(46)-3
(-49)2
ТТІ
49
(-4)18
1
40
The simplified expression for the given expression is:40T^2 × T^98 × (4^181) / 4^67
Given expression : (4^-3)^-3 × (4^0)^-9 × (4^6)^-3 × (-4)^-49 × (2T)^2 × (T^2)^49 × (-4)^181 × 40To simplify the given expression, we use the following properties of exponents : For any real numbers a, b and n, we have ;a^-n = 1/a^n and a^n × a^m = a^(n+m)Let's simplify each term of the given expression one by one:(4^-3)^-3 = 4^(9) because when a negative exponent is raised to another negative exponent, it becomes positive. (4^-3)^-3 = 4^(-3×-3) = 4^(9)(4^0)^-9 = 4^0 = 1 because any number raised to the power of 0 is equal to 1(4^6)^-3 = 4^(-6×3) = 4^(-18) because when a negative exponent is multiplied by another negative exponent, it becomes positive.(-4)^-49 = -1/(4^49) because when a negative exponent is raised to another negative exponent, it becomes positive and also negative.(-4)^181 = (4^181) because when an odd negative power of a negative number is raised to another power, it becomes negative.40 = 40 as it is(2T)^2 = 4T^2(T^2)^49 = T^(2×49) = T^98(-49) = -49 as it is Now let's simplify the given expression:1 × 1/(4^49) × 4^(-18) × 40 × 4T^2 × T^98 × (4^181)40 and 4^-18 can be simplified and combined as follows:1/(4^49) × 4^(-18) × 40 = 40/(4^49 × 4^18) = 40/4^(49+18) = 40/4^67.
for such more questions on expression
https://brainly.com/question/31591125
#SPJ8
A student made a sketch of a potential energy diagram to represent an endothermic reaction.
A curve line graph is shown. The y axis of the graph has the title Potential Energy and kJ written in parenthesis. The x axis of the graph has the title Reaction Pathway. The curve begins at a higher level and ends at a slightly lower level. A broken horizontal line is shown from a point labelled X on the y axis to the point where the curve begins. Another broken horizontal line is shown from a point labeled Y on the y axis to the point where the curve ends.
Explain, using complete sentences, why the diagram made by the student is correct or incorrect. Be sure to also explain what the values of X and Y represent
The description of the potential energy diagram created by the student aligns with the characteristics of an endothermic reaction, illustrating the energy changes and activation energies involved.
What is endothermic reaction?The curve line starting at a higher level and ending at a slightly lower level indicates the change in potential energy during the course of the reaction. In an endothermic reaction, the products have higher potential energy than the reactants.
The curve correctly depicts this energy change, as the reaction progresses from higher potential energy (reactants) to a slightly lower potential energy (products).
Learn more about endothermic reaction:https://brainly.com/question/28909381
#SPJ1
35% and 0.5kg of solution of hydrochloric acid is diluted by adding 500g of water. What is percent by mass of diluted solution?
The percent by mass of diluted solution, given that the hydrochloric acid is diluted by adding 500 g of water is 17.5%
How do I determine the percent by mass of diluted solution?First, we shall determine the mass of the HCl in the solution. Details below:
Mass of solution = 0.5 KgPercentage = 35% = 0.35Mass of HCl = ?Mass of HCl = Percentage × mass of solution
= 0.35 × 0.5
= 0.175 Kg
Finally, we shall obtain the percent by mass of diluted solution
Mass of HCl = 0.175 KgInitial mass of solution = 0.5 KgMass of water = 500 g = 500 / 1000 = 0.5 KgMass of diluted solution = 0.5 + 0.5 = 1 KgPercent by mass =?Percentage = (mass of HCl / mass of diluted solution) × 100
= (0.175 / 1) × 100
= 17.5%
Thus, we can conclude that the percent by mass of diluted solution is 17.5%
Learn more about percentage composition:
https://brainly.com/question/11952337
#SPJ1
Ozone in the stratosphere forms the ozone layer and is beneficial.
Where is ozone a pollutant?
Answer:
Within smokestacks and tailpipes
Explanation:
this is where manmade ozone is usually produced
\You have 1.5 lbs of gold. Find its volume in cubic meters if the density of gold is 19.3 g/cm3
The volume of gold in cubic meters is approximately 0.00003529 m3.
To find the volume of gold in cubic meters, we need to first convert the given mass of gold from pounds to grams and the density of gold from grams per cubic centimeter to kilograms per cubic meter. Once we have the mass and density in SI units, we can use the formula for density to calculate the volume of gold.
Step-by-step solution:
Given: Mass of gold = 1.5 lbs; Density of gold = 19.3 g/cm3.
We know that 1 lb = 0.453592 kg, so the mass of gold in grams is:
1.5 lbs × 0.453592 kg/lb × 1000 g/kg = 680.388 g
We also know that 1 cm3 = 10-6 m3, so the density of gold in kg/m3 is:
19.3 g/cm3 × 1000 kg/g × (10-6 m3/cm3) = 19300 kg/m3
Now we can use the formula for density:
Density = Mass/Volume
to find the volume of gold in cubic meters:
Volume = Mass/Density
Volume = 680.388 g/19300 kg/m3
Volume = 0.00003529 m3
for such more questions on volume
https://brainly.com/question/29796637
#SPJ8
