chem

posted by .

For the elementary reaction

NO 3 + CO → NO2 + CO 2

the molecularity of the reaction is __________, and the rate law is rate = __________.

A) 2, k[NO 2][CO 2]

B) 2, k[NO 3][CO]/[NO2 ][CO 2]

C) 4, k[NO 3][CO][NO 2][CO 2]

D) 4, k[NO 2][CO 2]/[NO 3][CO]

E) 2, k[NO 3][CO]

how do i solve problems like these?

• chem -

I think the secret is the wording. In "elementary" reactions, you go with the coefficients in the balanced equation.
So reactions involving 1 molecule are unimolecular, while two or three or either bimolecular or termolecular. So this is a bimolecular equation and the rate law is k[NO3][CO] so I would go with answer E.

• chem -

ok thank you!

Similar Questions

1. Chemistry

When 442 mg of NO2 is confined to a 150. mL reaction vessel and heated to 300°C, it decomposes by a second-order process. In the rate law for the decomposition of NO2, k = 0.54 1/(M·s). A) what is the initial reaction rate?
2. chemistry class

A flask is charged with 0.124 mol of A and allowed to react to form B according to the reaction A(g) → B(g). The following data are obtained for (A) as the reaction proceeds: Time (s) 1 10 20 30 40 Moles of A 0.124 0.110 0.088 …
3. Chem Class

The data in the table below were obtained for the reaction: A + B → P 3 Experiments 1 (A) (M): 0.273 (B) (M): 0.763 Initial Rate (M/s): 2.83 2 (A) (M): 0.273 (B) (M): 1.526 Initial Rate (M/s): 2.83 3 (A) (M): 0.819 (B) (M): 0.763 …
4. chem class

The data in the table below were obtained for the reaction: A + B → P 3 Experiments 1 (A) (M): 0.273 (B) (M): 0.763 Initial Rate (M/s): 2.83 2 (A) (M): 0.273 (B) (M): 1.526 Initial Rate (M/s): 2.83 3 (A) (M): 0.819 (B) (M): 0.763 …
5. Chemistry

What is the correct rate law for the following reaction?
6. Chemistry

The iodide ion can be oxidized in an acidic solution by hydrogen peroxide. One proposed mechanism for the reaction is as follows: Step 1: H2O2 (aq) + I-(aq) → H2O (l) + OI-(aq) slow Step 2: H+(aq) + OI-(aq) → HOI(aq) fast …
7. chemistry

The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a. rate = k(A]2 b. rate = k(B]2 c. rate = k(A][B] d. rate = k(A][B]2 e. none of the above represents the …
8. chemistry

The equation A + 2 B = C + D describes an elementary reaction, which takes place in a single step. Thus, the rate law must be a. rate = k(A]2 b. rate = k(B]2 c. rate = k(A][B] d. rate = k(A][B]2 e. none of the above represents the …
9. Chemistry

I've tried to answer some -The reaction mechanism for a reaction is as follows… Step 1 O3 (g) + NO2 (g)→ NO3 (g) + O2 (g) slow Step 2 NO3 (g) + NO2 (g) → N2O5 (g) fast a. Write the overall reaction equation. b. Identify …
10. Chemistry!!!!

1. For a reaction mechanism to be plausible, what 2 criteria must be met?

More Similar Questions