Part A The Haber process is typically carried out at a temperature of approximately 500∘C. What would happen to the rate of the forward reaction if the temperature were lowered to 100∘C? The reaction rate would . SubmitHintsMy AnswersGive UpReview Part Part B What would happen to the rate of the forward reaction if the concentration of nitrogen were decreased? The reaction rate would . SubmitHintsMy AnswersGive UpReview Part Part C Which of the following would increase the rate of the reverse reaction? Which of the following would increase the rate of the reverse reaction? increasing the concentration of ammonia decreasing the temperature increasing the concentration of nitrogen SubmitHintsMy AnswersGive UpReview Part Part D What will happen to the rates of the forward and reverse reactions when a catalyst is added? What will happen to the rates of the forward and reverse reactions when a catalyst is added? Forward rate increases; reverse rate decreases. Both forward and reverse rates increase. Both forward and reverse rates decrease. Forward rate decreases; reverse rate increases.

Calculate the pH of a buffer solution prepared by mixing 20 mL of 5.0% acetic acid with 20 mL of 0.50 M NaOH and 100 mL of water

When 50.0 mL of 0.400 M Ca(NO3)2 is added to 50.0 mL of 0.800 M NaF, CaF2 precipitates, as
shown in the net ionic equation below. The initial temperature of both solutions is 25.00°C. Assuming
that the reaction goes to completion, and that the resulting solution has a mass of 100.00 g and a heat
capacity the same as water, calculate the final temperature of the solution.
Ca2+(aq) + 2 F-(aq) → CaF2(s)
ΔH° = –11.5 kJ

When trying to solve this I get an answer of 26.1 degrees C.

I am basically doing T2 = 11500(.02)/(100x2.09) - 25 = 26.1. However I know this to be the wrong answer. Can someone help me see my error?

At a certain temperature, the Kp for the decomposition of H2S is 0.846.

H_​2​S(g) <---> ​H_​2 (g) ​+ S (g)​  

Initially, only H2S is present at a pressure of 0.161 atm in a closed container. What is the total pressure in the container at equilibrium? (in atm)

Give an explanation as to why Fe(II) which prefers six coordinate geometry might only use 3 protein ligands in the active site

please write clearly

or type answers

A. Determine the linear density for BCC lithium, which has a lattice parameter of 0.35089 nm, in the [100], [110], and [111] directions. Which of these directions is close packed?

B. Determine the planar density and packing fraction for BCC lithium in the (100), (110), and (111) planes. Which, if any, of these planes is close packed?

C. A diffracted x-ray beam is observed from the (220) planes of iron at a 2θ angle of 99.1o when x-rays of 0.15418 nm wavelength are used. Calculate the lattice parameter of the iron.

If 30.0 mL of 0.150 M CaCl2 is added to 35.0 mL of 0.100 M AgNO3, what is the mass of the AgCl precipitate?

When is it a good idea to use flash chromatography?

At 650 K, the reaction MgCO3(s)⇌MgO(s)+CO2(g) has Kp=0.026. A 10.0-L container at 650 K has 1.0 g of MgO(s) and CO2 at P=0.260 atm. The container is then compressed to a volume of 0.100 L. Find the Mass of MgCO₃ that forms.

50.0 mL of 2.00 mol/L HNO3 solution and 50.0 mL of 1.00 mol/L NaOH solution, both at 20.0 degree Celsius, were mixed in a calorimeter. Calculate the molar heat of neutralization of HNO3 in kJ/mol if:

(1) final temperature was 28.9 degree Celsius;

(2) the mass of the overall solution was 102.0 g;

(3) the heat capacity of the calorimeter was 25.0 J/C;

(4) and assume that the specific heat of solution is the same as water, 4.184 J/(g C);

Only one (cis) isomer of product is formed in the Diels-Alder cycloaddition. Explain why one product is formed, and why is has that particular stereochemistry ( the Diels-Alder cycloaddition in this case is butadiene reacting with maleic anhydride)

6. I suggest using Excel to answer this question. Consider the following distribution of polymer chains:

5 chains of degree of polymerization 10

25 chains of degree of polymerization 100

50 chains of degree of polymerization 500

30 chains of degree of polymerization 1000

10 chains of degree of polymerization 5000

5 chains of degree of polymerization 50,000

(a) Calculate the number and weight average degree of polymerization and polydispersity of this collection of polymer chains.

(b) If these chains are poly(methyl methacrylate) what would be the corresponding number and weight average molecular weights (ignore end group effects)? Hint: the MW of the repeat unit is 100 g/mol.

(c) Add five more chain of degree of polymerization 10 to the above distribution. Comment on the relative effect that this has on the calculated number and weight average molecular weights.

Determine the concentrations of Na2CO3, Na , and CO32– in a solution prepared by dissolving 2.61 × 10–4 g Na2CO3 in 2.25 L of water. Express all three concentrations in molarity. Additionally, express the concentrations of the ionic species in parts per million (ppm). Note: Determine the formal concentration of CO32–. Ignore any reactions with water.

A concentrated solution of sucrose, C12H22O11, contains 233.2 g dissolved in 397.07 g water. The density of the solution is 1.1507 g mL-1 Calculate; weight percent, mol fraction, molality, and molarity of C12H22O11 in the solution

The mean free path of neon is 6.4 x 10^-2 m at a pressure of 1.00 x 10^-4 atm and 298 K. A neon atom has a mass of 3.351 x 10^-26 kg. Calculate the collision cross section and the collision frequency of neon under these conditions.