Enter an equation for the formation of NH3(g) from its elements in their standard states Express your answer as a chemical equation including phases. N2(g) + 3H2(g) +2NH3(g)

Answers

Answer 1

The formation of NH3(g) from its elements in their standard states can be represented by the following equation: N2(g) + 3H2(g) --> 2NH3(g).

This equation represents the combination of one molecule of Nitrogen gas (N2) and three molecules of Hydrogen gas (H2) to form two molecules of Ammonia gas (NH3). All the reactants and products are in their gaseous state at standard temperature and pressure.A chemical equation is a written representation of a chemical reaction. It shows the reactants (the starting materials) on the left side of an arrow and the products (the resulting materials) on the right side of the arrow. The arrow represents the transformation of the reactants into products.

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Related Questions

Label the intermediate(s) and transition state(s) in the reaction mechanism
A. First intermediate formed
B. Second intermediate formed
C. First transition state formed
D. Second transition state formed
E. Third transition state formed
F. Product

Answers

The correct option is F. Product i.e., it is the intermediate(s) and transition state(s) in the reaction mechanism.

What is the reaction?

One or more new substances are formed as a result of the rearrangement of the atoms or molecules of two or more substances that come into contact. Electrons of one material interact with those of another to produce chemical reactions.

What makes chemical reactions significant?

We can learn about a substance's qualities by studying chemical reactions. We can learn about a substance's chemical characteristics by looking at how it interacts with other substances. These characteristics can be utilized to recognize an unidentified sample.

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Determine the product of the following reaction.1. LiAIH42. H2O

Answers

The product of the reaction using LiAIH₄ 2.H₂O is attached below.

In simple terms, what is a chemical reaction?

One or more substances, also referred to as reactants, are changed into one or more new substances, referred to as products, during a chemical reaction. Combustion is one of the five fundamental types of chemical reactions, along with combination, decomposition, single-replacement, and double-replacement.

Chemical reactions begin with reactants, and the products of a reaction are the substances that were produced. The common chemical formula can be used to represent a chemical reaction: Reaction products. During chemical reactions, bonds shatter and reform. Also, the opposite outcome of the reaction happens.

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why do you think the molecular geometry and bond angle for these molecules (ch4, nh3, and h2o) are different even though they have the same amount of total electron groups?

Answers

This is because of the variation in lone pairs CH4 has no lone pair [Tetrahedral], NH3 has 1 lone pair[Pyramidal], H2O has 2 lone pair[Bent].

What is bond angle?

A complex molecule's or ion's bond angle is the angle between both the two bonds, or the angle between two orbitals that contain bonding electron pairs surrounding the central atom. It is computed using a spectroscopic approach and expressed in degrees.

What affects bond angle?

There are several common aspects to take into account, including the size of the involved atoms, the presence of lone pairs, numerous bonds, big groups connected to the core atom, and the environment the molecule is situated in.

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1.a student mixes baking soda and vinegar in a glass. the results are a bubbly chemical reaction. do you think any new substances are being created in this mixture? if so, how do you know?

2.suppose this was done on top of a balance. do you think the mass would change as the reaction proceeded?

3.what do you think would happen to the mass if the reaction took place inside a sealed plastic bag?

Answers

The baking soda and vinegar are an acid-base reaction which is chemical. Because of this, a new substance is formed. The bubbles show that a gas is created (carbon dioxide

Baking soda and vinegar cause a chemical acid-base reaction. As a result, a new substance is formed. The bubbles indicate the formation of a gas (carbon dioxide). Bicarbonate of soda, also known as "baking soda," is a fantastic household item that can be used for so much more than baking! See some of the best baking soda uses, from removing stains to cleaning teeth to even getting rid of your sweet tooth. We always had baking soda on hand when I was a kid to leaven biscuits, dumplings, and various quick breads. Mom put an open box of it in the fridge to absorb odours, and she had us drink a bit of it mixed with water to settle upset stomachs.

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how many kilograms of chalcopyrite must be mined to obtain 465 g of pure cu ?how many kilograms of chalcopyrite must be mined to obtain 465 g of pure cu ?

Answers

Chalcopyrite must be mined to obtain 465 g of pure cu will be 1342.92g.

The chemical formula for Chalcopyrite will be CuFeS2 having a brassy to golden yellow color. It contains 34.5%Cu, 35.0% S and 30.5% Fe. Mineral is the principal source of a copper metal, as well as one of the major source of sulfur. Chalcopyrite will corresponds having a molecular mass of 183.54.

The distribution of a mass for this compound will be

Iron      Fe  55.845 (1) 30.430%

Copper Cu  63.546 (1) 34.626%

Sulfur S      32.065 (2) 34.944%

Cu represents 34.626% of the total mass of a compound      

To mine 425g of pure copper, requires a quantity of the Chalcopyrite which is equal to

\frac{465g}{0.34626} =1342.92g }{}    

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if i have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 liters, and a temperature of 87 0 c, how many moles of gas do i have?

Answers

The measurements for such question indicate that we possess 1.259 mol of gas.

Is 37 degrees Fahrenheit hot or cold?

Your body temperature is usually around 37 °C. When his body is 37.8°C or greater, you typically have a fever. You might feel hot, cold, or shaky. You can tell if you have a fever by testing your temperature with a thermometer.

Pressure of gas = 1.2 atm

Volume of gas = 31 L

Temperature of gas = 87°C

Number of moles = ?

The generic gas equation will be used to address the given problem.

PV = nRT

P= Pressure

V = volume

n = number of moles

R is equal to 0.0821 atm.L/mol.K for general gases.

T = temperature in kelvin

Now we will convert the temperature.

87+273 = 360 K

by putting values,

1.2 atm × 31 L = n×0.0821 atm.L/ mol.K × 360 K

37.2 atm.L = n× 29.556 atm.L/ mol

n = 29.556 atm.L/mol / 37.2 atm.L

n = 1.259 mol

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which statement describes why energy is released in a nuclear fusion reaction based on mass-energy equivalence?

Answers

The correct statement is for nuclear fusion reaction: A)For large nuclei, the mass of the original nucleus is greater than the mass of the products.

What was the explanation for mass-energy equivalence?

This statement is based on the mass-energy equivalence, which states that the mass and energy of a system are equivalent and can be converted into each other according to the famous equation E=mc². In nuclear fusion reactions, the total mass of the products is less than the total mass of the reactants. This difference in mass is converted into energy and released as radiation, in the form of heat, light and other forms of radiation. Therefore, in a nuclear fusion reaction, the binding energy of the lighter nuclei is less than the binding energy of the heavier nucleus and the mass of the original nucleus is greater than the mass of the products, that's why energy is released.

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Which statement describes why energy is released in a nuclear fusion reaction based on mass-energy equivalence?

A)For large nuclei, the mass of the original nucleus is greater than the mass of the products.

B)For large nuclei, the mass of the original nucleus is less than the mass of the products.

C)For small nuclei, the binding energy of the lighter nuclei is greater than the binding energy of the heavier nucleus.

D)For small nuclei, the binding energy of the lighter nuclei is less than the binding energy of the heavier nucleus.

module 9 lesson 3 assignment: concentration directions: use what you have learned about molarity, molality, mass percent, and mole fraction to solve the following problems. be sure to show your work and circle or highlight your answer. please submit your work via the link provided. calculate the molarity of 0.060 moles nahco3 in 2500. ml of solution.

Answers

A solution with a molarity of 0.024 M contains 0.060 moles of nahco3 in 2500 ml. When describing how concentrated a solution is, molarity is an essential measurement.

The solution's volume has a big impact on the concentration, a solution based on molarity. In this post, we learned about molarity and molality, along with their units and computation procedures. When the solute and solvent interact, any solution can form in a homogenous mixture. A solute is a substance that is present in a solution in less of it than the solvent, and it dissolves in the solvent, which is present in a greater quantity.

Molarity is the quantity of solute in moles per litre of solution.

2.5 L and 0.060 mol of NaHCO3 are equal to 0.024 M.

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Consider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy ΔG∘:reaction A:reaction B:glucose-1-phosphatefructose-6-phosphate⟶⟶glucose-6-phosphate,glucose-6-phosphate, ΔG∘=−7.28 kJ/mol ΔG∘=−1.67 kJ/molPart ACalculate ΔG∘ for the isomerization of glucose-1-phosphate to fructose-6-phosphate.

Answers

Figures for such simple sugars' esterification reactions with That is -5.61 kj/mol and the typical Kinetic free energy "G" reaction.

What are free energy of Gibbs and entropy?

Entropy is a unit of measurement for the amount of heat that diffuses or is communicated during a chemical reaction. How is it has said Gdp energy is free? Gibbs energy is frequently referred as as inspiration and self to initiate a chemical reaction and is evaluated at constant pressure and temperature.

Gibb's spontaneous energy is often called free energy because it is always available. The reaction can acquire this energy if necessary without making any effort. To calculate the variance in Gibb's free energy, hysteresis and the system's total heat and entropy are added.

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natasha wrote a table comparing pure substances and mixtures. what correction should be made to natasha's table? a elements and compounds are considered mixtures. b pure substances can be separated using physical means. c mixtures contain at least three or more substances. d mixtures are substances that are not chemically combined.

Answers

No correction is required in table of pure substances and mixtures.

A mixture contains further than one chemical substance, and thus isn't pure. The substances in a mixture can be rudiments, composites, or both.

Pure substances can be separated using physical means. rudiments and composites are considered fusions. fusions are substances that aren't chemically combined. fusions contain at least three or further substances

A mixture is a physical combination of two or further substances. These aren't combined chemically. The factors retain their individual properties indeed after forming a mixture.

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Liquid Measurements Water Isopropyl Alcohol Mass A Graduated Cylinder (9) 17.83 18.07 Volume (mL) 5 5 Mass B: Graduated Cylinder with Liquid (9) 23.54 23.9 Mass B-A Liquid (9) 5.71 5.83 Density (g/mL) 3.56 3.61 Percent Error (%)

Answers

the percent error for the density of the liquid in each graduated cylinder is -1.38% in A and 1.39% in B

To calculate the percent error for the density of the liquid in each graduated cylinder, we need to use the following formula:Error percent is calculated as [(experimental value - acceptable value) / accepted value]. x 100. First, we'll calculate the density of the liquid in graduated cylinder A: Density of liquid A = mass of liquid A / volume of liquid A = (23.54 - 17.83) g / 5 mL = 3.56 g/mLNow we'll calculate the percent error for density of liquid A: % Error = [(3.56 g/mL - 3.61 g/mL) / 3.61 g/mL] x 100 = -1.38%. Next, we'll calculate the density of liquid B: Density of liquid B = mass of liquid B / volume of liquid B = (23.9 - 18.07) g / 5 mL = 3.61 g/mL. Now we'll calculate the percent error for density of liquid B:% Error = [(3.61 g/mL - 3.56 g/mL) / 3.56 g/mL] x 100 = 1.39%. It's worth noting that the percent error for the density of liquid A and B are opposite in sign and similar in magnitude, this implies that the measurement errors in mass and volume are likely to be canceled out when measuring the density, resulting in relatively low error.

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How many significant figures does this value have: 10,888,003.0?

Answers

Answer:

1

Explanation:

significant figures means

amount of numbers AFTER a decimal

Answer:

Explanation:

there's 9

? Anyone know the answer

Answers

The amount of heat gained or lost by a sample (q) can be calculated using the equation q = mcΔT, where m is the mass of the sample, c is the specific heat, and ΔT is the temperature change.

In which process is heat not added?In adiabatic process, no transfer of heat takes place between system and surroundingAdiabatic process: When a thermodynamic system undergoes a change in such a way that no exchange of heat takes place between Systems and surroundings, the process is known as an adiabatic process.During an isobaric expansion process, heat enters the system. Part of the heat is used by the system to do work on the environment; the rest of the heat is used to increase the internal energy.:Yes, heat can be added to a body without causing the temperature of the body to rise as in the case of latent heat being added to cause a change of state of the body or isothermal process

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The drawings below represent aqueous solutions. Solution A is 2.00 L of a 2.00-M aqueous solution of copper(II) nitrate. Solution B is 2.00 L of a 3.00-M aqueous solution of potassium hydroxide. a. Draw a picture of the solution made by mixing solutions A and B together after the precipitation reaction takes place. Make sure this picture shows the correct relative volume compared to solutions A and B, and the correct relative number of ions, along with the correct relative amount of solid formed. b. Determine the concentrations (in M) of all ions left in solution (from part a) and the mass of solid formed.

Answers

The mass of the solid is 293 g. if  A 2.00 L of 2.00-M aqueous solution of copper(II) nitrate. Solution B is 2.00 L of 3,00-M aqueous solution of potasSium hydroxide.

What can happen if your potassium level is too low?

A low potassium level can make muscles feel weak, cramp, twitch, or even become paralyzed, and abnormal heart rhythms may develop. The diagnosis is based on blood tests to measure the potassium level. Usually, eating foods rich in potassium or taking potassium supplements by mouth is all that is needed.

Can low potassium be cured?

Hypokalemia is treatable. Treatment usually involves treating the underlying condition. Most people learn to control their potassium levels through diet or supplements.

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Is SbF3 polar or non polar?

Answers

Antimony trifluoride, SbF3, has a negligible solubility, hence its reactivity in non-polar aprotic solvent has not been investigated.

What kind of molecule is nonpolar?

The non-polar molecules are those without charges at the end because their electrons are evenly distributed throughout and cancel one another out symmetrically. A polar and non-polar molecule cannot mix together in a solution.

Does water have polarity or not?

The water molecule consists of two poles, one positive charge here on 'H' pole (side) and one negative charge here on 'O pole because of the uneven sharing of electrons here between atoms and the asymmetrical form of the molecule (side).

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how does rank the compounds nh3, n2, c2h6, ncl3, h2 in terms of decreasing capillary action in a glass tube

Answers

The given compounds ranked based on the decreasing capillary action in a glass tube NH₃ < NCl₃ < C₂H₆ < N₂ < H₂.

How would you describe the capillary action?

A meniscus will turn upward as a result of water adhesion to a vessel's walls, which exerts an upward force on the liquid at the liquid's edges. The surface tension maintains the surface's integrity. When the adhesion to the walls is greater than the cohesive forces between the liquid molecules, capillary action takes place.

The movement of liquids in constricted areas is known as capillary action. The force of molecular attraction between a liquid and the solid surfaces around it is to blame.

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The tabulated data were collected for this reaction:
CH3Cl(g) + 3Cl2(g) → CCl4(g) + 3HCl(g)
[CH3Cl] (M) [Cl2] (M) Initial Rate (M/s)
0.050 0.050 0.014
0.100 0.050 0.029
0.100 0.100 0.041
0.200 0.200 0.115

Answers

The rate law is for this reaction is   r= k [CH₃Cl][Cl₂]⁻⁰⁵ M s⁻¹

where the rate constant is k = 1.25 and the overall order of the reaction is 1.5.

An equation that connects the rate of a chemical reaction to the concentrations of the reactants is known as the rate law.

The reaction's rate law is as follows:

r = k [CH₃Cl]ᵃ [Cl₂]ᵇ

where,

r is the initial rate.

k is the rate constant.

a is the reaction order for CH₃Cl.

b is the reaction order for Cl₂.

If we write the ratio r₂/r₁, we get:

r₂/r₁ = k [CH₃Cl]₂ᵃ [Cl₂]₂ᵇ / k [CH₃Cl]₁ᵃ [Cl₂]₁ᵇ

r₂/r₁ = {[CH₃Cl]₂/ [CH₃Cl]₁}ᵃ

(0.029 M/s)/(0.014 M/s) = {0.100M/0.050 M}ᵃ

a ≈ 1

If we write the ratio r₃/r₂, we get:

r₃/r₂ = k [CH₃Cl]₃ᵃ [Cl₂]₃ᵇ / k [CH₃Cl]₂ᵃ [Cl₂]₂ᵇ

r₃/r₂ = {[Cl₂]₃/[Cl₂]₂}ᵇ

(0.041 M/s)/(0.029 M/s) = {0.100 M/0.050 M}ᵇ

b ≈ 0.5

So far, the rate law is:

 r= k[CH₃Cl][Cl₂]⁰⁵

your question is incomplete but most probably your full question was

The tabulated data were collected for this reaction:

CH3Cl(g) + 3Cl2(g) → CCl4(g) + 3HCl(g)

[CH3Cl] (M) [Cl2] (M) Initial Rate (M/s)

0.050 0.050 0.014

0.100 0.050 0.029

0.100 0.100 0.041

0.200 0.200 0.115

(a) Write an expression for the reaction rate law and calculate the value of the rate constant, k.

(b) What is the overall order of the reaction?

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true or false: the exponents in a rate law are always equal to the coefficients in a balanced chemical reaction.

Answers

The give statement that the exponents in a rate law are always equal to the coefficients in a balanced chemical reaction is false.

What is reaction rate?

Reaction rate is the rate at which a chemical reaction moves forward. It is frequently described in terms of either the concentration of a reactant that is consumed in a unit of time or the concentration of a product that is generated in a unit of time (amount per unit volume).

The exponents in a rate law, which describe the dependence of the reaction rate on the concentrations of the reactants, are determined experimentally and may not be equal to the coefficients in the balanced chemical equation for the reaction.

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in the beta oxidation pathway, when the starting fatty acid contains n carbons, what is the product of the enzyme acyl-coa synthetase? assume the starting saturated fatty acid contains n carbons and n is an even number.

Answers

In the beta oxidation pathway, the product of the enzyme acyl-coa synthetase when the starting fatty acid contains n carbons is, an acyl-CoA molecule.

What is Beta oxidation pathway?

The word "β-oxidation" refers to an oxidation that occurs in the fatty acid's -carbon when two carbon atoms are removed from the carboxyl end of the molecule at a time. By means of a process known as  beta oxidation, fatty acids with an even or odd number of carbon atoms as well as unsaturated fatty acids are oxidised.

The acyl-CoA molecule contains n-carbon fatty acid, which is covalently bound to Coenzyme A (CoA) through a thioester bond. The starting fatty acid is a saturated fatty acid containing n carbons, where n is an even number.

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true/false. Given the equation representing a reaction at equilibrium: N2(g) 3H2(g) ( 2NH3(g) Explain, in terms of collision theory, why the rate of the forward reaction decreases when the concentration of N2(g) is decreased.

Answers

Less actual collisions. Because there is fewer N₂ molecule to collision with H₂ molecules, the forward reaction's pace slows down. Because crashes happen less frequently, the rate decreases.

What does the term "reaction" in chemistry mean?

In a chemical reaction, one or more chemicals, usually known as reactants, change into same or more other compounds, frequently referred to as products.

What are reactions and how do they differ?

Pairing, decomposition, fixed, double-replacement, and conflagration are the five fundamental kinds of chemical processes. You may classify a reaction into one of these groups by looking at the reactants and products. Several categories will apply to some reactions.

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The complete question is-

Given the equation representing a reaction at equilibrium:

N₂(g) + 3H₂(g) <==>2NH₃(g)

Explain, in terms of collision theory, why the rate of the forward reaction decreases when the concentration of N₂(g) is decreased.

0.50 moles of gas take up 10.5 L
of space under constant pressure
and temperature conditions.
What volume is required to hold
2.0 moles of the gas?

Answers

0.50 moles = 10.5 L
2.0 moles = x L

2.0 moles : 0.50 moles = 4
10.5 L • 4 = 42 L

Complete and balance each of the following equations. If no reaction occurs, write NOREACTION. Express your answer as a chemical equation. Identify all of the phases in your answer.

1) KCl (aq) + CaS (aq) -->
2) CrBr2 (aq) + Na2CO2 (aq) -->
3) NaOH (aq) + FeCl3 (aq) -->
4) NaCl (aq) + Hg2(C2H3O2)2 (aq) -->
5) (NH4)2SO4 (aq) + SrCl2 (aq) -->
6) NH4Cl (aq) + AgNO3 (aq) -->

Answers

The following equations. If no reaction occurs: 1) NOREACTION, 2) CrBr2 (aq) + Na2CO2 (aq) --> 2NaBr (aq) + Cr(CO3)2 (s), and given below:

What is reaction?

Reaction is the process by which a material or substance undergoes a change due to the introduction of an external factor. It is an action or response to a stimulus, and can be either physical or chemical in nature. Chemical reactions involve changes in the composition of the substances involved, while physical reactions involve changes in the physical properties of the substances.

3) NaOH (aq) + FeCl3 (aq) --> NaCl (aq) + Fe(OH)3 (s)

4) NaCl (aq) + Hg2(C2H3O2)2 (aq) --> 2NaC2H3O2 (aq) + Hg2Cl2 (s)

5) (NH4)2SO4 (aq) + SrCl2 (aq) --> 2NH4Cl (aq) + SrSO4 (aq)

6) NH4Cl (aq) + AgNO3 (aq) --> AgCl (s) + NH4NO3 (aq)

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what trend in ionization energy do you see as you go down a group/family on the periodic table? what causes this trend?

Answers

As you progress down a group, the first ionization energy normally drops. This is because the outermost electron is typically held less securely and can be removed with less energy because it is farther away from the nucleus.

As you descend a group family on the periodic table, what pattern do you notice?

The electronegativity of a group diminishes from top to bottom. This is due to the fact that as atomic number decreases within a group, the atomic radius—the separation between the valence electrons and nucleus—increases.

As you move through the periodic table, what pattern do you notice in the ionization energy?

First ionization energy normally rises from left to right across a period on the periodic table. This is because.

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Typically, the initial ionization energy decreases as you move along a group. This is because the outermost electron is typically held less securely and can be removed with less energy because it is farther away from the nucleus.

As you descend a group family on the periodic table, what pattern do you notice?

A group's electronegativity decreases at top to bottom. This is because the atomic radius—the distance in between outer electrons and nucleus—increases as atomic number within a group decreases.

What pattern do you see in the ionization energy as you progress through the periodic table?

On the periodic table, the first ionization energy typically climbs across a period from left to right.

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You are given a 1.50-g mixture of sodium nitrate and sodium chloride. You dissolve this mixture into 100 mL of water and then add an excess of 0.500 M silver nitrate solution. You produce a white solid, which you then collect, dry, and measure. The white solid has a mass of 0.641 g. a. If you had an extremely magnified view of the solution (to the atomic-molecular level), list the species you would see (include charges, if any). b. Write the balanced net ionic equation for the reaction that produces the solid. Include phases and charges. c. Calculate the mass percent of sodium chloride in the original unknown mixture.

Answers

A. If you had an extremely magnified view of the solution (to the atomic-molecular level), the species you would see would include sodium ions (Na+), nitrate ions (NO3-), chloride ions (Cl-), and silver ions (Ag+).

What is atomic-molecular?

Atomic-molecular level refers to the scale at which the behavior of atoms and molecules can be studied and understood. At this level, the structure and properties of materials can be explained in terms of the interactions between atoms and molecules.

b. The balanced net ionic equation for the reaction that produces the solid is as follows:
Na+ + Cl- + Ag+ → AgCl(s) + Na+
c. To calculate the mass percent of sodium chloride in the original unknown mixture, we need to determine the mass of sodium chloride in the mixture. Since the original mixture had 1.50 g of sodium nitrate and sodium chloride combined, we can subtract the mass of sodium nitrate from this to find the mass of sodium chloride:
Mass of sodium chloride = 1.50 g - 0.859 g = 0.641 g
To calculate the mass percent of sodium chloride, we can divide the mass of sodium chloride by the total mass of the mixture and multiply by 100:
Mass percent of sodium chloride = (0.641 g / 1.50 g) × 100 = 42.7%.


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Determine the electron geometry (eg) and molecular geometry (mg) of the underlined atom CH3OCH3.

Answer options:
eg=trigonal bipyramidal, mg=tetrahedral
eg=linear, eg=linear
eg=tetrahedral, mg=tetrahedral
eg=tetrahedral, mg=bent
eg=octahedral, mg=square planar

Answers

Electron geometry (eg) = tetrahedral and molecular geometry (mg) = tetrahedral, is correct option for given question.

What is the geometry of the molecule?

The organization of atoms in a molecule in three dimensions is known as molecular geometry, commonly referred to as the molecular structure. A compound's polarity, reactivity, state of matter, colour, magnetism, and biological activity can all be determined by knowing its molecular structure.

What distinguishes molecular geometry from electron geometry?

Molecular geometry is the configuration of atoms within a molecule, typically in relation to a single center atom. Electron geometry is the configuration of the electron pairs around with a central atom.

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When zinc is heated redness in a current of steam,hydrogen gas is obtained.write an equation​

Answers

when a Zn react with the steam ie, heated with a steam the product formed wiil be Zinc hydroxide and hydrogen gas.

Zn(OH)2 + H2

when has glucose been broken down from its original 6 carbon molecule to 6 molecules of carbon dioxide?

Answers

After the second turn through the Krebs cycle the glucose molecule has been broken down completely from its original 6 carbon molecule to 6 molecules of carbon dioxide.

Krebs cycle starts when acetyl-CoA combines with a four-carbon molecule. That molecule is called OAA. This produces citric acid which has six carbon atoms. The Krebs cycle is also known as the citric acid cycle. After the formation of citric acid, it goes through a series of reactions and release energy. The energy is captured in molecules of NADH, ATP, and FADH2. Carbon dioxide releases as a waste product of the reactions. The final step of the Krebs cycle is the re-generation of OAA. This is the molecule that began the Krebs cycle. This molecule is needed for the next turn through the cycle. Two turns are needed for the complete process. It is because of the glycolysis produces two pyruvic acid molecules when it splits glucose.

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f the original mass of wo3 is 37.0 g, how many grams of co2 must be collected from the reaction in order to infer that the solid that remains is pure tungsten

Answers

11 grams of CO2 must be collected from the reaction in order to infer that the solid that remains is pure tungsten.

What is chemical reaction example?

A chemical reaction is a process in which reactants react chemically and convert into products by chemical transformation. For example, Respiration – we inhale oxygen which reacts with glucose and produces carbon dioxide, water and energy.

How does a chemical reaction start?

When atoms establish or break chemical bonds, chemical processes take place. Reactants are the substances that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.

Given:

WO3 = 37.0 g

Chemical reaction,

2WO3(s) + 3C(s) ↔ 2W(s) + 3CO2(g)

(37 grams WO3) / (232 grams) = 0.159 moles WO3(0.159 moles WO3) x (3 moles CO2 / 2 moles WO3) = 0.239 moles CO2(0.239 moles CO2) x (44 grams CO2) = 10.5 grams

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a 50.0 ml sample of koh is titrated with a o.8186 m hcl solution. the titration requires 27.87 ml of the hcl solution to reach the equivalence point. what is the moarity of the koh solution?

Answers

The molarity  of the KOH solution is 0.46 M

A titration is a technique where a solution of known concentration is used to determine the concentration of an unknown solution. For titration procedures, it is important to determine the chemical reaction involved. For this problem, the reaction would be:

KOH + HCl = KCl + H2O

We calculate as follows:

0.02787 L ( 0.8186 M ) ( 1 mol KOH / 1 mol HCl ) = 0.0228 mol KOH

MOlarity =moles of solute / liters of solution

Molarity = 0.0228 / 0.05

Molarity = 0.46 M KOH

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which of the following would occur if solid nh4cl was added to an aqueous solution of nh3?
The pH decreases.
The equilibrium constant changes.
The pH increases.
NH3 will ionize to a greater extent.

Answers

Adding solid nh4cl to an aqueous solution of nh3 lowers the pH.

NH4Cl is a salt. That is, when dissolved in water, it dissociates into its corresponding ions, namely NH4+ and Cl-. NH4+ wants to balance. Dissociates into H+ and NH3. However, the solvent contains more NH3, which promotes the reverse reaction. Therefore, NH4 remains and more NH4 is produced until equilibrium is reached. This raises the pH. In chemical reactions, chemical equilibrium is the concentration of both reactants and products that do not change over time and is the state of no observable change in system properties.

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