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AP Chemistry Rate Law

Authored by Charles Martinez

Chemistry

9th - 12th Grade

NGSS covered

AP Chemistry Rate Law
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16 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is a rate law, where the units of rate are equal to the units of the rate constant?

Rate = k [A]0

Rate = k [A]

Rate = k [A] [B]

Rate = k [A] [B] [C]0

Tags

NGSS.HS-PS1-5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which answer choice correctly matches the integrated rate law shown below?

1/[A]t = k t + 1/[A]0

A zero order reaction where a plot of 1/[A]t (y-axis) versus t (x-axis) will yield a straight line with slope = k

A first order reaction where a plot of 1/[A]t (y-axis) versus t (x-axis) will yield a straight line with slope = k

A first order reaction where a plot of 1/[A]t (y-axis) versus t (x-axis) will yield a straight line with slope = -k

A second order reaction where a plot of 1/[A]t (y-axis) versus t (x-axis) will yield a straight line with slope = k

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A proposed mechanism for a given chemical reaction is given below.

STEP 1 (fast) A + B → J

STEP 2 (slow) J + A → C + F

STEP 3 (fast) F + A → C + D

Which combination of statements is consistent with the data above?

Rate = k [A]2 [B] and the overall reaction is 3A + B → 2C + D

Rate = k [A] [B] and the overall reaction is 3A + B → 2C + D

Rate = k [A]2 [B] and the overall reaction is 3A + B → 2C + D + F + J

Rate = k [A]3 [B] and the overall reaction is 3A + B → 2C + D

Tags

NGSS.HS-PS1-5

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

STEP 1 H2O2 + I- → H2O + OI-

STEP 2 H2O2 + OI- → H2O + O2 + I-


Which species is the catalyst in the reaction?

H2O2

I-

H2O

OI-

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

STEP 1 H2O2 + I- → H2O + OI-

STEP 2 H2O2 + OI- → H2O + O2 + I-

Which species is an intermediate?

H2O2

I-

H2O

OI-

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which chemical equation consistent with the mechanism provided?

STEP 1 H2O2 + I- → H2O + OI-

STEP 2 H2O2 + OI- → H2O + O2 + I-

2H2O2 → 2H2O + O2

2H2O2 + I- → 2H2O + O2

½H2O2 + I- → H2O + O2

½H2O2 + I- → H2O + OI- + O2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

A reaction of the reactants A and B, to produce products X and Y, can be summarized as;

3A + 2B → 2X + Y

What is the rate law for the reaction?

Rate = k [A] [B]2

Rate = k [A]2 [B]2

Rate = k [B]

Rate = k [B]2

Tags

NGSS.HS-PS1-5

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