108.10 g of sodium chloride will be produced if 42.5 grams of sodium metal react with excess chlorine.
What is Stoichiometry?The mechanism that chemists employ to quantify quantities in reactions is known by the fancy name of "stoichiometry." The coefficient ratio established using balanced reaction equations is used to establish links between the reactants and products in reactions.
Equation formed:
2Na + Cl₂ = 2NaCl
Molar mass :
Sodium (Na) - 23 g/mol
Chlorine (Cl₂) - 35.5 × 2 = 71 g/mol
Sodium chloride (NaCl) = 23 + 35.5 = 58.5 g/mol
molar stoichiometric ratio of sodium & chlorine in reaction = 2 : 1.
42.5 grams of sodium contain 3.4/23 or 1.848 moles.
1 g of chlorine has 0.014 moles, or 1/71 of a mol.
Only 1.848/2 = 0.924 mol of chlorine are required to completely transform 1.848 mol of sodium into sodium chloride. Sodium is the limiting reactant, whereas chlorine is the surplus reactant.
In the reaction, the mole ratio of sodium to sodium chloride is 2: 2, which may be expressed as 1: 1.
1.848 mol of sodium utilized equals 1.848 mol of sodium chloride generated.
Molar mass equals moles of sodium chloride times the mass of 1.848 mol of sodium chloride.
m = (58.5 g/mol) × 1.848 mol
m = 108.10 g
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Joey is thinking about applying an equal push force to two objects, one with a small mass, and one with a large mass. What is the most likely outcome to this test?
The smaller object will have a greater change in motion.
The larger object will have a greater change in motion.
Both objects will have an equal change in motion.
Neither object will have a change in motion.
The result of the test is that the smaller object will have a greater change in motion. Option A
What is force?In the simplest sense of the word, a force could be regarded as a push or a pull. We can see that the object irrespective of the mass of the object would continue to be at rest until it is acted upon by a force.
In this question, we are told that Joey is thinking about applying an equal push force to two objects, one with a small mass, and one with a large mass. The force that could move the small mass may not move the large mass due to inertia.
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Please help me I've been stuck on this for hours at this point don't bother providing an explanation I need answers
Answer:
I'm not entirely sure about questions 3-5, but I am going to assume you want the products.
3. [tex]Al + O_{2} = AlO_{2}[/tex]
4. [tex]2 Mg + Zn(NO_{3})_{2} = 2 Mg(NO_{3}) + Zn[/tex]
5. [tex]BaCl_{2} + Na_{2}SO_{4} = BaSO_{4} + 2 NaCl[/tex]
As for questions 6-8, it is quite simple,
6. Synthesis Reaction
7. Single Displacement Reaction or another name is Substitution Reaction
8. Decomposition Reaction
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calculate the temperature (in k) at which 0.0938 mol of o2 has a pressure of 740 torr in a 1.0l container.
The temperature (in k) will be 126.509 K
Number of moles of Oxygen = 0.0938 mol
Pressure = 740 torr or 98658.6 Pa
Volume = 1.0 L or 0.001 m3
Temperature in K = ?
To find out the temperature (T) we use the ideal gas equation
PV = nRT
As we have to find the temperature so rearrange the equation for T
T = PV / nR
value of R = 8.314 J/mol.K
Put the values in the equation
V = 98658.6 * 0.001 / 0.0938 * 8.314
V = 0.000974 / 0.779853
V = 98.6596 / 0.779853
V = 126.509 K
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describe the trend in first ionization energy of Group 18 elements as the atomic number increases
Answer:
First ionization energy decrease
question content area stirring a solute into a solution increases the net dissolving rate (reduces the dissolving time to reach equilibrium) because the ...
Stirring a solute into a solution increases the net dissolving rate because stirring affects how quickly a solute dissolves in a solvent but does not affect how much solute will dissolve.
The sum of solute that will break up is influenced by temperature - more will break down at higher temperatures. Typically called the solubility of the solute.
Charts of the solvency at distinctive temperatures can be utilized to decide how much will break down, or at which temperature a given arrangement will be gotten to be saturated.
Stirring moves the dissolvable particles around, permitting them to connect with the strong pieces of undissolved solute and transporting the broken-up solute absent into the bulk of the solution.
In the nonappearance of blending, the concentration of solute will be most noteworthy near the pieces of solute, so more solute won't break down into the arrangement until the broken-up solute has been transported absent by dissemination.
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what is minimal concentration of chloride ion (in m) to form pbcl2 precipitate when solid nacl is added to 0.0049 m lead(ii) nitrate solution? ksp(pbcl2)
The minimal concentration of chloride ion is 1.67 × 10 ⁻³ M
Concentration is the abundance of a constituent divided by way of the overall volume of an aggregate. several sorts of mathematical descriptions may be outstanding: mass concentration, molar concentration, variety concentration, and extent awareness.
The concentration of a substance is the quantity of solute found in a given amount of solution. Concentrations are normally expressed in terms of molarity, defined because of the variety of moles of solute in 1 L of answer.
The Concentration of an answer is a measure of the quantity of solute that has been dissolved in a given amount of solvent or answer. A concentrated answer is one that has a rather huge quantity of dissolved solute.
calculation:-
2NaCl + Pb ⁺² ------------> PbCl₂
Ksp = [Pb⁺][Cl⁻]²
[Cl⁻] = [tex]\sqrt{ \frac{Ksp}{[Pb+]}[/tex]
= [tex]\sqrt{ \frac{1.4×10^{-8} }{0.0049}[/tex]
= 1.67 × 10 ⁻³ M
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what is the molarity of an aqueous solution that is 5.88% nacl by mass? (assume a density of 1.02 g/ml for the solution.) (hint: 5.88% nacl by mass means 5.88 g nacl/100.0 g solution.)
The polarity equation is given, masks are divided by smaller mosques, and all are divided by the volume of solution in liters.
As a result, we will obtain a number closer to 1.49. Thus, the original solution's polarity is as follows.
What is the meaning of Molarity ?The amount of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. Molarity is defined as the number of moles of solute per liter of solution.
The moles of solute per liter of solution is measured as molarity. For instance, when table salt is dissolved in water, water serves as both the solution and the solute. Sodium chloride weights 58.44 grams per mole. One liter of water and 58.44 grams of sodium chloride combine to form one molar solution, or 1M.
100 g of a solution Additionally, it is assumed that the starting density is 1.02 grandpa. We can therefore determine the volume or solution from this information. Volume of the solution is therefore equal to the solution's mass divided by its city. So we have 100 g of solutions here. Therefore, 100 g make up the majority of the solution. Divided by the solution's density, 1.02 grandpa is obtained. The result will be 98.04 cm. The volume motor solution is now available. Next, we may determine the initial solution's polarity. As a result, we have the polarity equation, which is provided as smaller mosque divided by masks.
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50 POINTS
Which chemical formula most likely describes ozone?
O A. O
OB. 03
OC. 0₂
O D. 000
Answer:
B
Explanation:
Ozone (O3) is a gas which is present naturally within Earth's atmosphere. It is formed of three oxygen atoms (giving it the chemical formula, O3).
What state of matter is H2O above 100°C?
Answer:
Gas
Explanation:
Similarly,if we heat a volume of water above 100 degrees Celsius, or 212 degrees Fahrenheit, water changes it's phase into a gas called water vapor
a solution is prepared by diluting six times with the dilution factor of 1/5. if the final concentration of the serial dilution is 1.4x10-7 m, calculate the original concentration of the solution. (this is often used in biological sample analysis.)
The original concentration of the solution will be 2.1 × 10⁻³ m
What is dilution factor?Dilution factor is the ratio to dilute the stock solution. This can be expressed as the ratio of the volume of the final diluted solution to the initial volume removed from the stock solution.
Differs from dilution factor. Dilution ratio refers to a simple dilution ratio that combines a unit volume of solute with the desired volume of solvent. On the other hand, the dilution factor refers to the ratio between the volume of the initially concentrated solute and the volume of the final diluted solution. Which is DF = Vₙ / V₀
For the given question,
Vₙ = DF × V₀
Where, Vₙ = Final concentration of the serial dilution
V₀ = Original concentration of the solution
DF = Dilution factor
Since the solution is diluted 6 times then
Vₙ = 1/5⁶ × V₀
1.4x10⁻⁷ = V₀/15625
V₀ = 15625 × 1.4x10⁻⁷
V₀ = 2.1 × 10⁻³ m
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why would you not reduce the flame size below its correct setting if the torch flame is too large for the job?
Lowering the flame can result in the tip overheating.
An overheating plasma system will wear out torch parts quickly and eventually may burn out the torch and leads.
What is an oxy-acetylene torch set?
A gas torch that burns a mixture of acetylene and oxygen to produce a high-temperature flame (3,000°C or 5,400°F) that can weld or cut metal.
Can an oxy-acetylene torch explode?
They occur either because the torch tip touched the work or because of insufficient gas pressure. When this happens, the popping sound turns to a whistle as the gases burn back through the tip and torch head. If not stopped, the fire can travel through and damage the torch, and hoses, and explode the cylinder.Thus, lowering the flame's size may result in the tip overheating.
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an ammonia buffer solution contains 0.18 m nh4 and 0.27 m nh3. the pka of ammonium is 9.24. what is the ph of the buffer?
An ammonia buffer solution contains 0.18 m NH₄ and 0.27 m NH₃ the pka of ammonium is 9.24 and the pH of the buffer is 9.41
pH means a measure of how acidic or basic a substances or solution
Here given data is
Pka of NH₄ = 9.24
Concentration of NH₄ = 0.18 M
Concentration of NH₃ = 0.27 M
Then we have to calculate pH =?
The pH of buffer solution can obtain by using the Henderson Hassel Bach equation
pH = Pka + log [base]/[acid]
pH = 9.24 + log [NH₃]/[NH₄]
pH = 9.24 + log [0.27 M[/[ 0.18 M]
pH = 9.24 + log [1.5]
pH = 9.24 + 0.176
pH = 9.41
pH of the buffer is 9.41
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How could you determine the density of your own body?
Answer:
Divide the body mass by the body volume to determine density.
:
Consider the hydrocarbon with chemical formula C₁0H8; this compound is an...
alkyne.
alkane.
alkene.
aromatic.
Please help :)
C₁OH₈ formula is an alkene hydrocarbon in the nature of its existence.
What are hydrocarbons?
The only two types of atoms that make up all of an organic complex called a hydrocarbon are carbon and hydrogen. The majority of the time, hydrocarbons are colourless gases with hardly detectable odours. Alkanes, alkenes, alkynes, and aromatic hydrocarbons are the four subcategories that are generally used to classify hydrocarbons. These compounds can have relatively simple structures or relatively complex structures.
The study of hydrocarbons can shed light on other functional groups' chemical composition and behaviour. Liquefied petroleum gas, which is derived from hydrocarbons like propane and butane, is also employed as a source of fuel for commercial reasons (LPG). One of the most basic aromatic hydrocarbons, benzene, is used as the starting point for the creation of numeroubrainly.com/question/17578846s synthetic medications.
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write the lewis structure for carbon dioxide, then answer the following questions: 1. how many valence electrons does this compound have? 2. how many bonded electrons does this compound have? 3. how many lone pairs of electrons does this compound have? 4. how many single bonds does this compound have?
Valence electrons in CO₂ = 16
Bonded electrons in CO₂ = 4 electrons of carbon and 2 electrons of each oxygen atom
Lone pairs of electrons in CO₂ = 2 l0ne pair of electrons on each oxygen atom
Single bonds in CO₂ = None
What is Lewis structure?A Lewis structure, also known as, Lewis dot structure, electron dot structure, is a diagram showing the bonds between the atoms of a molecule and the lone pairs of electrons present within the molecule.
Carbon dioxide is a colorless, odorless, non-flammable gas produced when carbon is burned. The ratio of carbon to oxygen in the CO₂ molecule is 1:2. Two double bonds join the carbon and oxygen atoms in the Lewis structure. There are two oxygen atoms at each end where they share electrons and form a bond with the central carbon atom. A Lewis structure diagram shows the number of valence electrons available for bond formation within an atom. You can also visualize the behavior of valence electrons in molecules and determine if lone pairs are present.
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I NEED THE ANSWER ASAP
Chemicals that have leached into the soil can be made harmless by _______________________. (binary fission, bioremediation)
Chemicals that have leached into the soil can be made harmless by bio remediation .
What is bio remediation?Bioremediation is a biotechnology process that reduces or eliminates pollution. It is a type of waste management technology that uses organisms to remove or recycle pollutants from polluted areas. There are several remedial measures to clean up contaminated water and solids through chemical treatment, incineration and landfill. There are other types of waste management technologies such as solid waste management, nuclear waste management, etc.Bioremediation is different because it does not use toxic chemicals.How does it work?Bioremediation relies on stimulating the growth of specific microorganisms that use contaminants such as oils, solvents and pesticides as food and energy sources.These microbes convert pollutants into small amounts of water and harmless gases such as carbon dioxide.Can learn more about bio remediation from
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The table shows the nature of the reactants and products formed in a certain type of chemical reaction. Nature of Reactants and Products Reactants Products Ionic compound + Ionic compound Ionic compound + Ionic compound Which of the following is true about this type of chemical reaction? Question 5 options: It is a single replacement reaction, and all four compounds are different. It is a double replacement reaction, and all four compounds are different. It is a single replacement reaction, and each compound has the same set of ions. It is a double replacement reaction, and each compound has the same set of ions.
Based o the nature of the reactants and products:
It is a double replacement reaction, and all four compounds are different; option B is correctWhat is the chemical reaction?A chemical reaction is a reaction that results in changes in the chemical properties of substances.
A chemical reaction results in the formation of new products.
There are several types of chemical reactions such as:
Single replacement reactions - this is a type of reaction in which one element replaces the radical in another chemical compound.This is illustrated as follows: AB + C ---> AC + B
Double replacement reactions - this is a type of reaction in which the negative radicals in two chemical compounds are exchanged between the metallic or positive radicals in each chemical compound.This is illustrated as follows: AB + CD ---> AC + BD
Hence, two ionic compounds react to produce two iob=nic compounds.
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a vessel contains 0.611 grams of butane gas (c4h10(g)) and molecules of oxygen gas. after the butane is reacted with the oxygen, how many molecules of co2(g) are formed and what is the theoretical yield of water?
0.936g is the theoretical yield of water
CO2 molecules = moles x Avogadro's number.
= 01034644x 6.022x1023
(2·0866 X 1022] (approx)
1 moles of O2 produce 6 moles of 420 from breath.
Theoretical 4x01060627 yield of H2O = Males of H2O X Molar Mass = 0.060627 moles of 02 generate.
= 0.051966 moles
10.051966 X 18.01528
0.936g
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what is the estimated effective nuclear charge, zeff, experienced by an electron in a 3p orbital of a chlorine atom?
The estimated nuclear charge on an electron in a 30 orbital of chlorine atom is 6.1
The charge that the outermost valence electrons of any many-electron atom experience is known as the effective nuclear charge. This is done by taking into account how many shielding electrons there are surrounding the nucleus. Rule of Slater: The effective nuclear charge that an electron in a multi-electron atom experiences is measured using this method. This rule states that the screening effect of the other electrons in the atom causes the actual nuclear charge an electron experiences to be smaller than the actual nuclear charge. An atom's distribution of electrons within its atomic orbitals is known as its electronic configuration.
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the separator breaks down making the process isobaric. will the benzene composition of the liquid leaving the separtor increase, decrease, or stay the same?
The process is isobaric as a result of the separator breaking down. The amount of benzene in the liquid leaving the separator increases, This is also known as isobaric process.
A thermodynamic process known as an isobaric process occurs at a fixed pressure. Greek words "iso" and "baros," which both signify equal pressure, were used to create the phrase "isobaric." Therefore, when the volume is increased or decreased, the constant pressure is obtained.
With the molecular formula C6H6, benzoene is an organic chemical substance. Six carbon atoms linked together in a planar ring, with one hydrogen atom connected to each, make up the benzene molecule. Benzene is a hydrocarbon since it is made up only of carbon and hydrogen atoms.
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Complete the notation configuration for Neon.
The electronic configuration of an element represent the filling of electrons in various orbitals or subshells. The configuration of the element neon is 1s² 2s² 2p⁶.
What is neon?Neon is 10th element in periodic table. It is a noble gas also called an inert gas since the inert gas group that is group 18 gases are commonly unreactive. The group members are neon, argon, krypton, xenon and radon.
The elements in group 18 have the general electronic configuration for valence electrons ns² np⁶. Therefore, they have a completely filled orbital and attained octet which means they are all highly stable.
Neon have 10 electrons and these electrons are arranged in orbitals in the increasing order of energy levels. Thus its electronic configuration is 1s² 2s² 2p⁶.
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Why does a pot of water start to steam after it boils?
the heat of the water
Explanation:
water heat boils and starts to mske water vapor.
The shore of Lake Assal in Djibouti is the lowest point on land in Africa. This point is 153 meters below sea level. Using equations 10.3 and 10.4, the temperature required to boil water on the shore of Lake Assal would be
The shore of Lake Assal in Djibouti is the lowest point on land in Africa. This point is 153 meters below sea level. Using equations 10.3 and 10.4, the temperature required to boil water on the shore of Lake Assal would be 82.6 degrees.
What is sea level?Sea level is described as an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured.
Sea level rise is as a result of two primary factors related to global warming:
the added water from melting ice sheets and glaciers, and the expansion of seawater as it warmsWe are going to use the formula that says "Fahrenheit is equal to 9/6 times C plus 32.
where c = 32
Fahrenheit = 9/6 * 28.1 + 32
Fahrenheit = 82.6 degrees.
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if he gas has an average kinetic energy of 6950 j/mol6950 j/mol under certain conditions, what is the root mean square speed of o2 gas molecules under the same conditions
The root mean square speed of O₂ gas molecules under the same conditions is 521.04ms⁻²
Kinetic energy is the energy an object has because of its motion
Here given data is
He gas = 6950 j/mol
We have to find root mean square = ?
So the formula is to find root mean square is
Vrms = √RT/m
Vrms = RMS velocity of the gas
T = absolute temprature of the gas
M = molar mass of the gas
R = universal gas constant
So, average molar kinetic energy of gas
E = 1/2 mv²rms = 1/2 RT
This equation reveal that molar KE is independent of the nature of the gas and it only depends on temprature as ideal behavior is concerned and so both He and O₂ will have same KE = 6950 j/mol and under the same condition of temprature
So for O₂
1/2 m O₂ V²rmsO₂ = 6950 j/mol
Taking atomic mass of O₂ = 16g/mol
V²rmsO₂ = 6950 × 2/2×16g/mol
VrmsO₂ = √69500000/16g/mol
VrmsO₂ = 521.04ms⁻²
Root mean square speed of O₂ gas molecules is 521.04ms⁻²
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What is another name for the activation energy barrier in a reaction?
A.
transition state
B.
changing state
C.
top of reaction
D.
needed energy
Please help me.
Energy made available through the flow of electric current is called...
Radiant
Sound
Elastic
Electrical
The energy transfer in the form of light or heat is called radiant energy. Thus the flow of electric current can be called as radiant.
What is radiation?Radiation is a mod of energy transfer through vacuum and the electromagnetic radiations are such energy transfer from stars and space which hits the earth surface.
Sound is a mechanical wave only travels through a medium whereas electromagnetic waves does not need a medium to travel. Electromagnetic radiation is the combination of an electric field and magnetic field.
Hence, the flow of electric current by which the energy made available is called radiant.
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what happens to the solubility of mgco3 in water if 0.1 m hno3 is added to the solution at 298 k? (ksp
The solubility of MgCO3 in water will increase if 0.1m HNO3 is added to the solution at 298k.
Magnesium carbonate (MgCO3) is basic in nature and insoluble in water but when 0.1m HNO3 (acidic) is added the MgCO3 will dissociate due to the opposite nature that is MgCO3 is basic and HNO3 is acidic. This will lead to an increase in solubility. The balanced equation of this reaction is:
MgCO 3 (s) + 2 HNO 3 (aq) → Mg(NO 3) 2 (aq) + CO 2 (g) + H 2O (l)
The equilibrium constant for the dissolution of a solid substance into an aqueous solution is the solubility product constant. Ksp is used to represent it.
A type of equilibrium constant, the solubility product's value changes with temperature. Due to increasing solubility, Ksp often rises as temperature rises.
A substance's ability to dissolve in a solvent to create a solution is known as a substance's solubility. Ionic compounds, which separate into cations and anions, have a wide range of solubilities in water. While other substances are exceedingly insoluble, some are highly soluble and may even absorb moisture from the air.
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when a 30.0 ml sample of a 0.461 m aqueous nitrous acid solution is titrated with a 0.467 m aqueous barium hydroxide solution, what is the ph at the midpoint in the titration?
The pH at midpoint in the titration will be 3.16
The pH at the midpoint of the titration (the half-equivalence point) will be equal to the pKa of nitrous acid i.e. 3.16. The calculation is quite simple as the Ka value is 4.0 x 10^-4. To find pKa = -log Ka.
Thus, pKa = -log (4.0 x 10^-4) = 3.16
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Body fluid is the liquid portion of our cells and tissues. In adults, what is the percentage of our body weight that is water?.
Answer:
50-70%
Explanation:
In adult men, about 60% of their bodies are water. However, fat tissue does not have as much water as lean tissue. In adult women, fat makes up more of the body than in men, so they have about 55% of their bodies are made of water.
the heat of vaporization of gold is over 4 times greater than that of the heat of fusion of gold. this means that it is easier to
according to the above assertion, melting gold is simpler than boiling it.
What are condensation and vaporization?Evaporation is the transformation of a liquid into its vapor when it occurs below the liquid's boiling point. The transition from a liquid into a gas is known as condensation. The rate of evaporating increases as the temperature rises.
Is vaporizing water boiling a vaporization?The process through which a solution boils and transforms into a gas is known as vaporization. Although evaporation doesn't involve boiling, vaporization is frequently confused with evaporation. The boiling point of a liquid is the heat at which it begins to turn into a gas. Pure water reaches its boiling point at 100°C.
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