a chemist is studying the reaction between the gaseous chemical species x and y2, represented by the equation above. initial rates of reaction are measured at various concentrations of reactants. the results are recorded in the following table

Answer:

[HI] = 0.784M

[I₂] = 0.108M

[H₂] = 0.108M

Explanation:

Based on the equilibrium reaction:

H₂(g) + I₂(g) ⇄ 2HI(g)

The equilibrium constant, K, is:

K = 52.8 = [HI]² / [H₂] [I₂]

Where [] are equilibrium concentrations of each gas.

As initial concentration of HI is 1.00M, the equilibrium concentrations of the gases is:

[HI] = 1.00M - 2X

[I₂] = X

[H₂] = X

Replacing:

52.8 = [1.00-2X]² / [X] [X]

52.8X² = 4X² - 4X + 1

0 = -48.8X² - 4X + 1

Solving for X:

X = -0.1899M. False solution, there is no negative concentrations

X = 0.108M. Right solution.

Replacing, equilibrium concentrations are:

[HI] = 1.00M - 2*0.108M

The some of the potential in the real world applications for the renewable energy sources such as the solar power and the wind power are  electricity generation, the water heating and cooling, and the transportation.

Renewable energy defined as the energy produced from the sources like the sun and the wind energy which are the naturally replenished and which do not run out.

The Renewable energy which can be used for the electricity generation, and the water heating and the cooling, and the transportation. The most sustainable sources of the energy are the renewable bioenergy. The Renewable sources of the, like the wind and the solar, it will emit the little to no the greenhouse gases.

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Answer:

In order to determine the charge of these elements you'll have to look at their placement in the periodic table by group number.

Explanation:

To further explain this, there is 18 groups of the periodic table.  These groups include:

Group 1: The alkali metals have a 1+ charge for their entire group.

For example: Sodium would have a charge of 1+.

Group 2: The earth alkali metals all have a charge of 2+. For example Mg has a charge of 2+.

Group 3-12: The transitions metals are a little harder to figure the charge of each, if given the compound they are bonded with you can use that to figure it out but only a few have distinct charges. Such as Ag (Silver) only have a 1+ charge. If you are still trying to figure the charge, try making an electron configuration to figure out it's spare electron count or charge.

Group 13: These elements in group 13 have a typical charge of 3+. For example Al has a charge of 3+.

Group 14: These elements in group 14 have a typical charge of 4+. For example Carbon has a charge 4+

Group 15: These elements start the shift towards a negative charge in the table, so for group 15 the elements have a 3- charge. For example Nitrogen has a 3- charge.

Group 16: These elements continue with a negative in group 16 with a negative charge of 2-. For example Oxygen's charge is 2-.

Group 17: The halogen elements in group 17 have a charge of 1-. For example Chlorine has a charge of -.

Group 18: The noble gases in group 18 do not have a charge because they are some of the most stable elements so they're not looking to gain or lose an electron (That is what a charge is basicaly). So, they're charge is none.  

Answer:

2.55 g of CO2.

Explanation:

What is given?

Volume of HNO3 solution = 350 mL = 0.350 L.

Molarity of HNO3 solution = 0.330 M.

Molar mass of CO2 = 44 g/mol.

Step-by-step solution:

To find how mass of CO2 will be produced based on the volume and molarity of a solution with a excess reactant (Na2CO3), we have to find the number of moles of the substance in the solution, i.e., the number of moles of HNO3. To do this, we use the molarity formula, which is the following:

The molarity of the HNO3 solution is 0.330 M, and the volume in liters would be 0.350 L (remember that 1 L equals 1000 mL, so 350 mL = 0.350 L). Let's solve for 'moles of solute' and replace the data that we have, like this:

We have 0.116 moles of HNO3 reacting with excess Na2CO3. You can see in the chemical equation that 2 moles of HNO3 reacted produces 1 mol of CO2, so let's see how many moles of CO2 can be produced by 0.116 moles of HNO3:

We're producing 0.058 moles of CO2.

The final step is to convert from 0.058 moles of CO2 to grams using the molar mass of CO2, as follows:

The answer would be that we're producing 2.55 g of CO2.

The planet’s diameter would be approximately the distance across the United States Mercury.

What is planet mercury known for?

Therefore, The planet’s diameter which would be approximately the distance of the United States is Mercury.

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From the reaction given, 47.4 kJ evolved when 5.91 grams of Na(s) reacted with H2O(l). The value of ΔrH for this equation is: - 23.7 kJ/mol.

Before calculating the enthalpy changes, we should know the moles of Na first:

n of Na = mass / molar mass

n = 46.4 g / 23 g/mol

n = 2 moles.

Now, the equation given is:

2Na(s) + 2H₂O(l) —> 2NaOH(aq) + H₂(g)    ΔH = - 47.4 kJ

The value of ΔrH has to state the enthalpy changes of one mol reactant. So, we need to divide the coefficient by 2:

Na(s) + H₂O(l) —> NaOH(aq) + ½ H₂(g)    ΔH = - 23.7 kJ/mol

Hence, the value of ΔrH is - 23.7 kJ/mol.

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Answer:

NO + O2 NO2

Explanation:

ANSWER

STEP-BY-STEP EXPLANATION

Answer:

B. Inertia resist changes to the state of motion of a body.

Explanation:

The force of inertia is an inherent property of matter in which it allows a body to resist changes to the state of motion of the body.

According to Newton's first law of motion "a body will remain at rest or in constant motion unless if an external force acts on it".

This is the law inertia.

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

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There don't seem to be any H atoms in that formula. All I see is Hg, which is mercury.

The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

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If a solid sample of NH₄SH decomposes with an equilibrium constant of 1.2 x 10⁻⁴, the equilibrium concentration of NH₃ will be 1.1 × 10⁻² M.

The equilibrium constant (Kc) is the ratio of the concentration of products to the concentration of the reactants, each raised to their respective stoichiometric coefficients. It does not include solids or pure liquids.

NH₄SH(s) ⇄ NH₃(g) + H₂S(g)

        NH₄SH(s) ⇄ NH₃(g) + H₂S(g)

I                                0            0

C                             +x           +x

E                                x            x

Kc = [NH₃] [H₂S] = x² = 1.2 x 10⁻⁴

x = 1.1 × 10⁻² M

If a solid sample of NH₄SH decomposes with an equilibrium constant of 1.2 x 10⁻⁴, the equilibrium concentration of NH₃ will be 1.1 × 10⁻² M.

The question was incomplete. This is the complete question.

Consider the equilibrium system described by the chemical reaction below, which has a value of Kc equal to 1.2 x 10⁻⁴ at a certain temperature. If a solid sample of NH₄SH decomposes, what will the equilibrium concentration of NH₃ be? NH₄SH(s) ⇄ NH₃(g) + H₂S(g)

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Answer:

So, the mole ratio between sodium and sodium oxide is 2:1=2

Explanation:

Answer:1 moles Sodium Oxide = 61.97894 gram

Explanation: got it from my teacher

Answer:

oxygen liquid

Explanation:

The functional group in alcohol is a hydroxyl group (-OH), in phenol, it is a hydroxyl group attached to a benzene ring, and in ether, it is an oxygen atom (-O-) between two alkyl or aryl groups.

Given that the question asks to identify each of the following compounds as an alcohol, a phenol, or an ether. The question seems to be incomplete as there are no options or compounds mentioned. However, given below is a general explanation of the three compounds -Alcohol: Alcohol is a compound that contains a hydroxyl functional group (-OH) that is attached to a carbon atom. The hydroxyl group in alcohol makes it polar and thus, able to form hydrogen bonds. Alcohol is used as a solvent, fuel, and disinfectant. Phenol: Phenol is an aromatic compound that contains a hydroxyl group (-OH) attached to a benzene ring. It is used in the production of detergents, plastics, and pharmaceuticals. Phenol is used as a disinfectant and anesthetic. Ether: Ether is an organic compound that contains an oxygen atom between two alkyl or aryl groups. It is a colorless, volatile, and highly flammable liquid that is used as a solvent and as a starting material in the synthesis of organic compounds. To identify a compound as an alcohol, phenol, or ether, we need to examine the functional groups in the molecule.

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Answer:

Black powder has 3 main ingredients: Sulfur (\(S\)), charcoal (\(C_{7}H_{4}O\)), and potassium nitrate (\(KNO_{3}\)).

Charcoal is basically just burnt wood and potassium nitrate can easily be displaced.

Keep in mind that this is BLACK POWDER and not actual gunpowder. The difference between the both is significant since gunpowder has a lot more refining processes it has to go through to be actually used in firearms and such.

The percentage composition of black powder should be 75% Potassium Nitrate, 10% Sulfur, and 15% charcoal.

Should be noted that black powder is not a safe compound to deal with, as static friction could ignite it.

There are other alternatives to Black powder such as nitroglycerin (used in dynamites) which is way more powerful and useful in doing mines and exploration but is an extremely tricky and reactive substance to work with.

I do hope this is just for educational purposes because you need to be certified to even just experiment with this (and there are laws to synthesize such as well, which I won't take any responsibility for)

Answer:

sulfur, charcoal and potassium nitrate

Explanation:

Payback

Answer: Electrons are taken up by \(PbO_2\) and they are lost by \(HCl\)

Explanation:

Redox reaction is defined as the reaction in which oxidation and reduction take place simultaneously. It is also called the reaction where the exchange of electrons takes place.

An oxidation reaction is defined as the reaction in which a chemical species loses electrons takes place. In this reaction, the oxidation state of a substance gets increased.

A reduction reaction is defined as the reaction in which a chemical species gains electrons takes place. In this reaction, the oxidation state of a substance gets reduced.

For the given chemical reaction:

\(PbO_2+4HCl\rightarrow PbCl_2+Cl_2+2H_2O\)

The half-reactions for this redox rection follows:

Oxidation half-reaction:  \(2HCl\rightarrow ClO_2 + 2e^-\)

Reduction half-reaction:  \(PbO_2+2e^-\rightarrow PbCl_2\)

Hence, electrons are taken up by \(PbO_2\) and they are lost by \(HCl\)

Answer:

The structural formula of CH2CONHCH3 is attached below -:

and the functional group of CH2CONHCH3 is - Amide

Explanation:

The IUPAC name of CH2CONHCH3 is -: N-methyl ethenamide .

ABOUT AMIDE FUNCTIONAL GROUP -: In organic chemistry, an amide, also known as an organic amide or a carboxamide, is a compound with the general formula RC(= O) NR 'R' where R, R 'and R' represent hydrogen organic groups or atoms.  When it is part of the main protein chain, the amide group is referred to as a peptide bond and isopeptide bond when it appears in a side chain, such as asparagine and glutamine in the amino acids.

The structural formula shows the arrangement of atoms and groups in a compound.

A chemical compound is composed of atoms of elements. There are three structures that could be written for a chemical substance. These are;

The structural formula of a compound shows the arrangement of atoms and groups in the compound in space. The structural formula of the compound CH2CONHCH3 has been shown in the image attached. The following functional groups are present in the compound;

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Answer:

where is diagram. sorry.

H2SO4 is known as sulfuric acid.

It is a strong oxacid acid.

HNO3(aq) is known as nitric acid.

It is a strong oxacid acid.

HCl is known as hydrochloric acid.

It is also a strong but hydracid acid.

The standard reaction Gibbs free energy (ΔGrxn°) using the given partial pressures is -60,200 J/mol.

Energy is the ability to do work, whether it be in the form of heat, light, electrical, chemical, nuclear, or mechanical energy. It is the capacity to move, change, or transform matter, and is essential for all processes of life.

ΔGrxn = -RT ln Kp
Where R is the universal gas constant (8.314 J/mol K) and T is the temperature (25°C).
Therefore, ΔGrxn = -(8.314)(298) ln (2.26 x 10⁴)
= -20,067 J/mol
Now we need to calculate the standard reaction Gibbs free energy (ΔGrxn°) using the given partial pressures:
ΔGrxn° = ∑nΔGrxn°products - ∑nΔGrxn°reactants
ΔGrxn°products = -RT ln (PCH₃OH)
= -(8.314)(298) ln (1.0)
= 0 J/mol
ΔGrxn°reactants = -RT ln (PCO) - 2(RT ln (PH2))
= -(8.314)(298) ln (0.010) - 2(8.314)(298) ln (0.010)
= -60,200 J/mol
Therefore, ΔGrxn° = ∑nΔGrxn°products - ∑nΔGrxn°reactants
= 0 - (-60,200)
= -60,200 J/mol
Finally, ΔGrxn = ΔGrxn° + RT ln Q
= -60,200 + (8.314)(298) ln (1.0)
= -60,200 J/mol.

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5 electron orbits

I hope this helps

Answer:

92,955,887.6 miles

150,000,000 kilometers.

i believe the answer is 15*10^7

Explanation: