Answer:
The limiting reactant is the reactant that is completely consumed before the other reactant(s) in a chemical reaction. To find the limiting reactant, we need to find how much product is formed from each reactant, and then compare which reactant forms the least amount of product.
The balanced equation for the reaction is 4H2O+7CO2---> C7H8+9O2
From the given data, we have 50g of H2O and 250g of CO2.
We can calculate the limiting reactant by using the stoichiometry of the equation.
The stoichiometry is the relationship between the amount of reactants and products in a balanced chemical equation.
From the balanced equation, we know that 4 moles of H2O and 7 moles of CO2 are needed to produce 1 mole of C7H8 and 9 moles of O2.
From the data we have, 50g of H2O is equivalent to 2.86 moles H2O.
And 250g of CO2 is equivalent to 5.36 moles of CO2.
Now, using the balanced equation, we can calculate the amount of product that forms from each reactant:
From 2.86 moles of H2O: 2.86 moles H2O * (1 mole C7H8 / 4 moles H2O) = 0.715 moles C7H8
From 5.36 moles of CO2: 5.36 moles CO2 * (1 mole C7H8 / 7 moles CO2) = 0.766 moles C7H8
As we can see, the CO2 is the limiting reactant because it forms less product than H2O.
The amount of excess reactant is the amount of the reactant that is not used up in the reaction, we can calculate this by subtracting the amount of product that forms from the limiting reactant from the initial amount of the reactant.
Excess reactant of H2O is 50g - (0.715 moles * 18.02g/mol) = 37.5g
Excess reactant of CO2 is 250g - (0.766 moles * 44.01g/mol) = 191g
So, the limiting reactant is CO2 and there is 191g of excess CO2 leftover.
Explanation: In a chemical reaction, the limiting reactant is the reactant that is completely consumed before the other reactant(s) run out. The limiting reactant determines the maximum amount of product that can be formed.
To determine the limiting reactant, we need to calculate the number of moles of each reactant present.
The moles of H2O: 50g/18g/mol = 2.778 moles
The moles of CO2: 250g/44g/mol = 5.68 moles
Next, we can use the coefficients in the balanced chemical equation to find the number of moles of each reactant required to react with each other.
The number of moles of H2O required: 4 moles H2O / 4 moles H2O/1 mole C7H8 = 1 mole C7H8
The number of moles of CO2 required: 7 moles CO2 / 1 mole C7H8 = 7 moles CO2
From the above we can see that H2O is the limiting reactant since it is consumed before the CO2.
To calculate the excess reactant, we subtract the number of moles of the limiting reactant from the number of moles of the other reactant.
The excess moles of CO2 = 5.68 moles - 1 mole = 4.68 moles
The excess moles of H2O = 0 moles (since H2O is limiting reactant)
The mass of the excess CO2 = 4.68 moles x 44 g/mol = 205.12 g
So, CO2 is the excess reactant and 205.12 g of CO2 is leftover.
Which of the following oxides are likely to be acidic, basic or amphoteric in aqueous solution: (a) MgO; (b) SnO; (c) CO2; (d) P2O5; (e) Sb2O3; (f) SO2; (g) Al2O3; (h) BeO? Briefly rationalize each of your choices.
Acidic oxides are Carbon dioxide([tex]CO_{2}[/tex]), Phosphorus pentoxide([tex]P_{2}$O_{5}[/tex]) and Sulfur dioxide([tex]S$O_{2}[/tex] ).
Basic oxide are Magnesium Oxide(MgO).
Amphoteric oxides are Tin(Stannum) Oxide(SnO), Antimony trioxide([tex]Sb_{2} $O_{3}[/tex]), Aluminum oxide([tex]Al_{2} O_{3}[/tex] ) and Beryllium oxide(BeO).
Magnesium Oxide(MgO) is a basic oxide.
Magnesium is a metal that, like the majority of metals, forms simple oxides.
Tin(Stannum) Oxide(SnO) is amphoteric oxide.
Since SnO reacts with both HCl (an acid) and NaOH (a base) to produce salt and water, its amphoteric nature may be demonstrated.
Carbon dioxide([tex]CO_{2}[/tex]) itself is not an acid, because it does not contain hydrogen ions (H +), but instead transforms into carbonic acid when dissolved in water. Water and carbon dioxide combine to generate carbonic acid, which makes the solution acidic.
Phosphorus pentoxide([tex]P_{2}$O_{5}[/tex]) is an acidic oxide.
Because it is an anhydride of phosphoric acid, phosphorus pentoxide is an acidic oxide that is employed as a desiccating and dehydrating agent.
Antimony trioxide([tex]Sb_{2} $O_{3}[/tex]) is an amphoteric.
It dissolves in aqueous sodium hydroxide solution to produce the trihydrate of the meta-antimonite [tex]NaSbO_{2}[/tex].
Sulfur dioxide([tex]S$O_{2}[/tex] ) is an acidic oxide.
[tex]S$O_{2}[/tex] occurs spontaneously during volcanic eruptions and is mostly caused by the burning of fossil fuels. The lungs can be harmed by [tex]S$O_{2}[/tex] inhalation.
Aluminum oxide([tex]Al_{2} O_{3}[/tex] ) is an amphoteric oxide'
This substance possesses both acidic and basic properties. The other reactant in the chemical reaction determines whether [tex]Al_{2} O_{3}[/tex] is basic or acidic.
Beryllium oxide(BeO) is an amphoteric oxide.
While most group II elements create basic oxide, BeO is an amphoteric oxide.
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using scientific notation person the following calculations (5.5x10) (1.4x10)
The answer to the calculation using scientific notation is 7.7x10^2
How to solve for this?Step 1: Convert the numbers to scientific notation, if they aren't already in that form: 5.5 = 5.5 x 10^1 and 1.4 = 1.4 x 10^1
Step 2: Multiply the coefficients (5.5 and 1.4) to get 7.7.
Step 3: Add the exponents (1 and 1) to get 2.
Step 4: Write the final answer in scientific notation: 7.7 x 10^2
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Please help me on this
The light colored panel reflects light and heats up, while the dark colored panel absorbs the light and stays cooler. This temperature difference causes the vanes to spin.
Describe how the light and dark colored panels affect how the radiometer spins.The dark panel absorbs the incoming light, while the light panel reflects it. Due to this, the two panels' temperatures differ, with the dark panel becoming hotter than the light panel.
Due to the pressure difference caused by the temperature difference, air molecules move from the hot, dark panel to the cool, light panel. The radiometer's associated vanes spin as a result of this air flow.
The radiometer will spin more quickly the greater the temperature differential between the two panels. The temperature differential between the two panels is higher in a vacuum, enabling the radiometer to spin more quickly.
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hi! im struggling to answer these please help!
1. Write a nuclear equation for the alpha decay of 231-91Pa.
2. Write a nuclear equation for the alpha decay of 146-62Sm
3. Write a nuclear equation for the alpha decay of 149-62Sm.
4. Write a nuclear equation for the alpha decay of 150-64Gd.
5. Write a nuclear equation for the alpha decay of 249-101Md.
A certain reaction has the following general form.
aA → bB
At a particular temperature and [A]0 = 2.57 ✕ 10-3 M, concentration versus time data were collected for this reaction, and a plot of 1/[A] versus time resulted in a straight line with a slope value of +3.39 ✕ 10-2 L/mol · s.
(b) Calculate the half-life for this reaction.
(c) How much time is required for the concentration of A to decrease to 7.43 ✕ 10-4 M?
Answer:
Rate law: r= k[A]^2
Integrated rate law: 1/[A] = kt + 1/[A]0
Rate constant: k= 3.40x10^-2 L/mol*s
Explanation:
Hello,
In this case, since the slope is obtained by plotting 1/[A] and it has the units L/(mol*s) or 1/(M*s), we can infer the reaction is second-order, therefore, its rate law is:
The integrated rate law:
That is obtained from the integration of:
And of course, since the slope equals the rate constant, its value is:
Which of the following reactions would have a decrease in entropy? A 2S*O_{3}(g) -> 2S*O_{3}(g) + O_{3}(g); 2N*H_{3}(g) -> N_{3}(g) + 3H_{3}(g); 2N*O_{2}(g) -> N_{3}*O_{4}(g) D. 2H_{g}*O(g) -> 2H_{g}(g) + O_{g}(g)
Answer:
D. 2H_{g}*O(g) -> 2H_{g}(g) + O_{g}(g)
The reaction 2N*H_{3}(g) -> N_{3}(g) + 3H_{3}(g) would have a decrease in entropy. In this reaction, the number of moles of gas on the right side of the equation is greater than on the left side, so the entropy increases. The other reactions would have an increase in entropy.
How many moles of Fe₂O3 are produced when 0.75 mol O₂ reacts with iron?
When 0.75 mol O₂ reacts with iron, it will produce 1.5 moles of Fe₂O3.
What is moles?Moles are small, burrowing mammals found throughout much of the world. They have a cylindrical body, covered in short, velvety fur, and stocky legs. They have a rounded snout and small eyes, and their fur is usually black, brown, or gray. Moles feed mainly on earthworms, insects, and grubs, and use their powerful front paws to dig extensive tunnel systems in gardens and lawns. Moles are solitary creatures, living and foraging alone, and they are active both day and night.
This is because the balanced chemical equation for the reaction is: 2Fe + 3O₂ → Fe₂O₃. Since there is a 2:3 ratio of iron atoms to oxygen atoms, for every 0.75 moles of oxygen, 1.5 moles of Fe₂O₃ will be produced.
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Which of the following represents an electron configuration that corresponds to the valence electrons of an element for which there is an especially large jump between the second and third ionization energies? (Note: n represents a principal quantum number equal to or greater than 2.)
answer choices
O ns2
O ns2np1
O ns2np2
O ns2np3
The answer is O ns2np2. This electron configuration corresponds to the valence electrons of an element for which there is an especially large jump between the second and third ionization energies.
The number of electrons in the outermost shell, or valence shell, is equal to the principal quantum number (n) squared (2 x 2 = 4), plus two additional electrons (2). So the total number of electrons in the valence shell is 6.
Electron configuration is the arrangement of electrons in the shells of an atom. It is an important concept in chemistry, as it is related to the atom's reactivity and how it interacts with other atoms. Electron configuration can be described in terms of the orbital notation, which uses the quantum numbers of an electron to describe which orbitals it occupies. Electron configuration can also be described in terms of electron subshells, which are groups of orbitals with the same principal quantum number.
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c.) If Rudy is chasing a tennis ball at an average speed of 10 mi h¹, and I throw it 0.01 miles away
from me, how long (in seconds) will it take him to return to me (assuming Rudy was right beside
me and no change in his speed throughout the chase)?
A: 7.2
The initial speed of a tennis ball is 53.6 m/s and the launch angle is theta =21 degrees.
When a tennis ball strikes the ground, how much speed does it lose?The serve speeds displayed on courtside digital monitors are calculated as soon as the ball exits the racquet. Fortunately for returners, by the time the ball reaches them, air resistance and court surface friction have reduced its speed by around 50%.
The tennis ball must subsequently bounce to a height of between 135 cm and 147 cm, implying a velocity of between 5.14 m/s and 5.36 m/s when it leaves the ground, according to the rules.
Average speed is calculated by dividing the total distance traveled by the body by the time required to cover that distance.
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application software presents information in a slideshow format used to create, compose, edit, format, and print documents electronic grid of columns and rows collection of related files performs particular tasks users need
The application software is likely a spreadsheet software.
Spreadsheet software is a type of application software used to create, organize, and analyze data in a tabular form. It presents information in a grid of rows and columns, similar to a paper spreadsheet, which allows users to easily enter and manipulate data.
Some of the most common features of spreadsheet software include formulas and functions for calculations, the ability to format cells, sort and filter data, create charts and graphs, and collaborate with others.
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How many moles are in 78.3g of ammonium sulfite?
Answer:
0,6746 moles of ammonium sulfite
Explanation:
(NH₄)₂SO₃ - ammonium sulfite [tex]\equiv \, N_2H_8SO_3[/tex]
Atomic weight of each element:
N = 14.00 * 2 = 28
H = 1.00 * 8 = 8
S = 32.065 * 1 = 32.065
O = 16 * 3 = 48
Total atomic weight = 28 + 8 + 32.065 + 48
Total atomic weight = 116,065 gr/mol
[tex]78.3\,g \,* \frac{1mol\,of\, (NH_4)_2SO_3}{116.065g \, \,of \, (NH_4)_2SO_3 } \approx 0,6746\, moles \, of \, (NH_4)_2SO_3[/tex]
For each reaction, calculate Hrxn, Srxn, and Grxn at 25 C and state whether the reaction is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous?
If so, should the temperature be raised or lowered from 25 C?
To calculate the enthalpy, entropy, and Gibbs free energy of a reaction, you need to know the enthalpy, entropy, and Gibbs free energy of each of the products and reactants.
Once you have these values, you can calculate the enthalpy, entropy, and Gibbs free energy of the reaction by subtracting the values of the reactants from the values of the products. For example, if the enthalpy of a reactant is -240 kJ/mol and the enthalpy of a product is 0 kJ/mol, then the enthalpy of the reaction is +240 kJ/mol.
If the reaction is not spontaneous at 25°C, then a change in temperature may make it spontaneous. Raising the temperature will generally increase the entropy of the reaction, and will make the reaction more spontaneous. Conversely, lowering the temperature will generally decrease the entropy of the reaction, and will make the reaction less spontaneous.
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you learned in the lab that macromolecules are large molecules that are made up of smaller subunits. the smaller subunits are combined into macromolecules in a reaction called dehydration synthesis. the macromolecules are broken down into their building blocks in a reaction called hydrolysis.
You learned in the lab that macromolecules are large molecules that are made up of smaller subunits. the smaller subunits are combined into macromolecules in a reaction called dehydration synthesis. the macromolecules are broken down into their building blocks in a reaction called hydrolysis. True. Macromolecules are formed by small unit atoms forming larger molecules. Dehydration synthesis results in the formation of large molecules from smaller molecules, and hydrolysis results in the formation of smaller molecules from large molecules.
Macromolecule are atoms that tend to form larger molecules form polymers with covalent bonds. The number of monomers that combine can reach tens of thousands so that the relative molecular mass can reach hundreds of thousands, even millions.
Dehydration synthesis is the formation of larger molecules with the release of water molecules. Several smaller molecules form covalent bonds with each other by releasing a molecule of water per each bond to form a complex compound. While, Hydrolysis is the breaking of chemical bonds in the presence of water. Large molecules are always broken down into smaller molecules using water as a reactant. When a large molecule is hydrolyzed there will be two small molecules.
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H2SO4 + 2NaOH --> H2O + Na2SO4
How many molecules of water(H2O) are produced if 2.0g of sodium sulfate(Na2SO4) are produced in the reaction above?
A) 6.77 x 1022 molecules
B) 8.5 x 1021 molecules
Answer:
The amount of water produced in a chemical reaction depends on the number of moles of the reactants, their stoichiometry, and the reaction conditions. The number of moles of sodium sulfate produced (2.0 g) does not provide information about the number of moles of hydrogen sulfate and sodium hydroxide used in the reaction or about the reaction conditions.
Calorimetry a 25g sample of gold is heated,then placed in a calorimeter containing 60.g of water. Temperature of water increases from 18.00 c to 20.00C how much heat energy was lost by the sampls of gold?
Based on the principle of calorimetry, the heat lost by the gold is 502.08 J.
What is the heat change that occurred when the temperature of the water increased?The heat change that occurred when the temperature of the water increased is calculated using the formula below:
Heat change = mass * specific heat capacity * temperature change
The mass of water = 60.0 g
The specific heat capacity of water = 4.184 J/g/°C
The temperature change of water = (20 - 18)°C
The temperature change of water = 2°
Heat change = 60 * 4.184 * 2
Heat change = 502.08 J
From the principle of calorimetry, the heat lost by the gold is equal to the heat gained by the water.
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a hot and concentrated solution of kbr was slowly cooled down to facilitate the crystallization of kbr, as the kbr crystals grew, the entropy of the system (the mixture of water and kbr) will group of answer choices stay the same decrease there is not enough information. increase
As the KBr crystals form from the hot and concentrated solution, the entropy of the system decreases. This is because the process of crystal formation is an ordered process, leading to a decrease in the number of available microstates, thus reducing entropy. As the solution cools, the solute molecules slow down and start to arrange themselves into a highly ordered lattice structure, which results in the formation of KBr crystals. This decrease in entropy is compensated by an increase in the entropy of the surroundings, such as the air or the container, in order to maintain the overall increase in entropy required by the second law of thermodynamics.
About KbrPotassium bromide (KBr) is widely used in life, one example is in the form of salt. Potassium bromide, is a typical ionic salt. This salt is completely dissociated and approaches pH 7 in aqueous solution. This compound serves as a source of bromide ion.
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Please answer my question.
The uninduced sample in this chromatographic results is sample 2. The lane corresponding to the uninduced sample in gel chromatography appears after the marker band.
What is gel filtration chromatography?Gel filtration chromatography, a form of size exclusion chromatography, can be used to fractionate molecules and complexes in a sample into fractions with a specific size range, to remove all molecules larger than a specific size from the sample, or to do both of these tasks simultaneously.
When in aqueous solution, substances such tiny molecules, proteins, protein complexes, polysaccharides, and nucleic acids can be separated using gel filtration chromatography.
The procedure is known as gel permeation chromatography when an organic solvent serves as the mobile phase. The uninduced lane in the given diagram is sample 2.
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Find ΔrH for the combustion of naphthalene at 298 K
The ΔrH for the combustion of compound of naphthalene at 298 K is -5133 kJ/mole which is a standard value.
What is a compound?Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.
Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:
1)Molecular compounds where in atoms are joined by covalent bonds.
2) ionic compounds where atoms are joined by ionic bond.
3)Inter-metallic compounds where atoms are held by metallic bonds
4) co-ordination complexes where atoms are held by co-ordinate bonds.
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Which of the following is an example of the law of multiple proportions?a. The atomic mass of bromine is found to be 79.90 amu.b. Two different compounds formed from carbon and oxygen have the following mass ratios: 1.33 grams of O to 1 gram of C, and 2.66 grams of O to 1 gram of C.c. A sample of chlorine is found to contain three times as much Cl-35 as CI-37.d. Two different samples of table salt are found to have the same ratio of sodium to chlorine.e. Nitrogen dioxide always has a mass ratio of 2.28 grams of O to 1 gram of N.
Option b is an example of the law of multiple proportions. when the two different compounds formed from carbon and oxygen have the following mass ratios: 1.33 grams of O to 1 gram of C, and 2.66 grams of O to 1 gram of C.
Law of multiple proportions: When two elements will combine to generate more than one compound, the weights of the one element that will combine with a fixed weight of the other are in a ratio of the tiny whole numbers, according to the law of multiple proportions.
The English scientist John Dalton will established the rule in 1803; its validation over a wide range of compounds is regarded as the most strong evidence in the support of Dalton's idea in which matter is made up of indivisible atoms.
For example: Let us suppose two molecules of CO and CO₂.
CO = 12 gram of carbon + 16 gram of oxygen
CO₂ = 12 gram of carbon + 32 gram of oxygen
Ratio of the mass of oxygen in the given two compounds will be 16 : 32 = 1 : 2
Thus, the law of multiple proportions will be proved.
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What are the properties of the aluminum in the can? Check all that apply
Answer: If you are looking for the number its 13.
Explanation:
if you can show your question for better understanding
which three of the following statements about autotrophs and heterotrophs on earth are true?select 3 correct answer(s)question 6 options:the majority of autotrophs on earth require aerobic respiration in order to survive.heterotrophs are dependent on autotrophs to generate o2 from h2o in order to support aerobic respiration.heterotrophs evolved on earth before autotrophs.heterotrophs depend on autotrophs for conversion of light energy to chemical energy.there are no metabolic differences between autotrophs and heterotrophs.heterotrophs that do not eat autotrophs every day will die in a short time.autotrophs depend on heterotrophs to oxidize sugar and release co2 into the atmosphere.the majority of heterotrophs on earth do not use aerobic respiration as a form of energy conversion.
Below are the three true assertions concerning autotrophs and heterotrophs on earth.
In order to support aerobic respiration, heterotrophs depend on autotrophs to produce O2 from H2O. They also depend on autotrophs to convert light energy to chemical energy. The bulk of Earth's autotrophs need aerobic respiration to survive.
Autotrophic plants use the energy from the sun and uncomplicated substances like carbon dioxide and water to store energy in food (glucose and starch). Instead of getting their energy from other living things, they get it directly from sunshine.
An organism is referred to as a heterotroph if it consumes other plants or animals for food and energy. Its origins are in the Greek words hetero, which means "other," and trophe, which means "nutrition."
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Suppose that flerovium-289 underwent decay by the sequential decay of two alpha particles. What is the name of the final isotope that is produced?
The final isotope that is produced after flerovium-289 undergoes decay by the sequential decay of two alpha particles is Lead-281.
Flerovium-289 is an unstable isotope that is known to decay through alpha decay, which involves the emission of an alpha particle (a helium nucleus) from the nucleus of the atom. An alpha particle is made up of two protons and two neutrons. When an atom undergoes alpha decay, it loses two protons and two neutrons from its nucleus, which reduces its atomic number by 2 and its mass number by 4.
In the case of flerovium-289, the atomic number of flerovium is 114, after emitting 2 alpha particles, the atomic number would be 110, which corresponds to the element lead. The mass number of flerovium-289 is 289, after emitting 2 alpha particles the mass number would be 285, which corresponds to the isotope of lead-281.
Therefore, the final isotope that is produced after flerovium-289 undergoes decay by the sequential decay of two alpha particles is Lead-281.
How many moles of atoms are present in 3 moles of Ca(NO3)2
moles.
Answer: In 3 moles of Ca(NO3)2, there are 24 moles of atoms.
Explanation: This is because:
1 mole of Ca(NO3)2 contains 1 mole of calcium (Ca), which has 1 mole of atoms
1 mole of Ca(NO3)2 contains 2 moles of nitrate (NO3), which has 6 moles of atoms
So in total, 1 mole of Ca(NO3)2 contains 1 + 6 x 2 = 13 moles of atoms.
Therefore, 3 moles of Ca(NO3)2 contains 3 x 13 = 39 moles of atoms.
How many moles are in 1.75 kg of iron Hint:mass of Fe/ MW Fe (55.85g)
There are around 31 moles in 1.75 kg of iron.
Molecular Mass is equal to 1 mole.
So, no. of moles = mass given/ molecular mass.
∴ no. of moles = 1.75 / (55.85 ÷ 1000)
∴ no. of moles = 31.33
What is molecular mass?The total sum of the mass of all the atoms present in a substance is called molecular mass.
What is mass?Mass is the quantity of matter in a body.
What is mole?Mole is the amount of substance which contains as many entities as there are atoms in 0.012 kilogram of carbon 12
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The pressure of 134 mL of a sample of carbon dioxide is increased from 485 mm Hg to 1,222 mm Hg. Calculate the new volume of the carbon dioxide.
The new volume of a gas when the pressure is increased is 53.2 mL.
What is the new volume of a gas when the pressure is increased?The new volume of a gas when the pressure is increased is determined using the formula from Boyle's law given below:
P₁V₁ = P₂V₂
where;
P₁ is the initial pressure
V₁ is the initial volume
P₂ is the new pressure
V₂ is the new volume
Solving for V₂:
V₂ = P₁V₁/P₂
V₂ = 134 * 485 / 1222
V₂ = 53.2 mL
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The phase of a substance depends on the relative magnitudes of the molecular _________________ and the energy of intermolecular attractions.
Select the correct answer below:
mass
volume
kinetic energy
pressure
Option (C) is correct. The phase of a substance depends on the relative magnitudes of the molecular Kinetic energy and the energy of intermolecular attractions.
The phase of a substance depends on the balance between the kinetic energy of the individual particles and the intermolecular forces. The kinetic energy keeps the molecules apart and keeps moving around. That is the function of the temperature of the substance and the intermolecular forces try to draw the particles together. The kinetic energy is defined as the energy that possesses due to the motion of an object. This energy is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. An intermolecular force is defined as an attractive force that arises between the positive components of one molecule and the negative components of another molecule.
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Find the mass in 4.5 mol of NaOH (show work pls)
The mass in 4.5 mol of NaOH is 180g.
How to calculate mass?The mass of a substance can be calculated by multiplying the molar mass of the substance by the number of moles as follows:
mass = molar mass × no of moles
Moles refers to the amount of substance of a system which contains exactly 6.022 10²³ elementary entities.
molar mass of NaOH = 40g/mol
mass = 40g/mol × 4.5mol
mass = 180grams.
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the heat of solution is the total enthalpy change when a solution is formed from the separated solute and solvent.
The heat of solution is the total enthalpy change when a solution is formed from the separated solute and solvent is true statement.
It is true that the overall enthalpy change that occurs when a solution is created from a separated solute and solvent is known as the heat of solution. The change in enthalpy that occurs when 1 mol of solute (component 1) dissolves in a solvent is known as the enthalpy of solution (or heat of solution) (component 2).
The amount of heat that can be emitted or absorbed when a solution dissolves is simply referred to as the enthalpy change of the solution. At a constant temperature, the enthalpy of a solution is typically represented as kJ/mol.
Three essential steps are necessary for the enthalpy of a solution:
1. Solute separation: This is the breakdown of the solute. The solute is no longer held together by any intramolecular forces in this situation.
2. Solvent separation: This occurs when all intramolecular forces holding the solvent together are broken as a result of the breakdown of the solvent.
3. Mixing: To create a solution, the solute and the solvent are combined in this instance.
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Which of the following statements about a chemical reaction is/are correct?
Energy is absorbed from the surroundings to break bonds
Forming bonds is an endothermic process
more energy is involved in breaking bonds than in forming bonds
Energy is absorbed from the surroundings to break bonds is the statements about a chemical reaction or endothermic is correct.
What does it mean to break bonds in endothermic?The process of breaking bonds is termed as endothermic. When new bonds are formed, energy is released. The process of creating bonds is exothermic. The difference between the energy required for breaking a bonds and the energy released while the new bonds form determines whether a reaction may be defined as endothermic or exothermic.
When atoms are swapped to create chemically distinct species, chemical bonds are broken, new ones are established, and a chemical reaction takes place. These two procedures are both chemical reactions.
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I need help please!!
The formula of the compound formed from K and P is K₃P. Potassium and oxygen is K₂O and the compound formed from potassium and F is KF.
What are ionic compounds?Ionic compounds are formed between metals and non-metals. Metals donate their valence electron to non-metals. Potassium, K forms the compound with Br as KBr, by donating one electron to bromine. Formula of compound between K and N is K₃N and that between K and S is K₂S
Similarly the table can be filled as follows:
compounds of sodium: Na₃P, Na₂O, NaF, NaBr, Na₃N and Na₂S.
compounds of Mg : Mg₃P₂, MgO, MgF₂, MgBr₂, Mg₃N₂, MgS
compounds of Al : AlP, Al₂O₃, AlF₃, AlBr₃, AlN, Al₂S₃
Compounds of Fe : FeP, FeO, FeF, FeBr, FeN, FeS.
compound of Cu : CuP, CuO, CuF, CuBr, CuN, CuS
and compounds of Ba are: Ba₃P₂, BaO, BaF₂, BaBr₂, Ba₃N₂,BaS
Find more on ionic compounds:
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