8) The reaction A → B is first order in [A]. Consider the following data. Time...
8) The reaction A → B is first order in [A]. Consider the following data. Time (s) [A] (M) 0.0 1.4 10.0 0.35 20.0 0.088 The half-life of this reaction is ________ s.
Homework Answers
For a first order reaction, half-life is the time period in which the concenration of the reacant becomes half i.e half of the reactant is used up.
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8) The reaction A → B is first order in [A]. Consider the
following data. Time...
PLEASE SHOW ALL STEPS FOR COMPREHENSION. The reaction is the first order in [A]. Consider the...
PLEASE SHOW ALL STEPS FOR
COMPREHENSION.
The reaction
is the first order in [A]. Consider the following data:
Time
[A] M
0.0
1.60
10.0
0.40
20.0
0.10
The rate constant for this experiment is ______
s-1?.
A – B
The data below were collected for the following reaction at 500 ∘C: CH3CN(g)→CH3NC(g) Time (h) [CH3CN]...
The data below were collected for the following reaction at 500 ∘C: CH3CN(g)→CH3NC(g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.316 Determine the order of the reaction at this temperature. What is the half-life for this reaction (at the initial concentration)? How long will it take for 80% of the CH3CN to convert to CH3NC?
days for it to decrease to 0.088 M. The half-life of a first-order reaction is 2.1...
days for it to decrease to 0.088 M. The half-life of a first-order reaction is 2.1 days. If the initial concentration of reactant is 0.13 M. It takes a. 1.2 b.1.4 c. 0.85 d.0.51 e. 0.13
A study of the rate of the reaction represented as 2AB gave the following data: Time...
A study of the rate of the reaction represented as 2AB gave the following data: Time (s) 0.0 5.0 10.0 15.0 20.0 25.0 30.0 [A] (M) 1.00 0.775 0.625 0.465 0.360 0.285 0.230 3. Determine the average rate of disappearance of A between 0.0 and 10.0 s, and between 10.0 and 20.0 s. 4. What order is the above reaction? What is the rate constant? Hint:You might have to graph the data. For the following reaction: 2NO(g)+C12(g)2NOCI(g) The observed initial...
8. Consider the reaction: A → B The rate of the reaction is 1.6 × 10−2 M/s when the concentration of A is 0.35 M. Calcul...
8. Consider the reaction: A → B The rate of the reaction is 1.6 × 10−2 M/s when the concentration of A is 0.35 M. Calculate the rate constant if the reaction is first order in A. Enter only the numerical value for the rate constant in the answer box. 9. The reaction 2A → B is second order with a rate constant of 51.0/M·min at 24°C. (a) Starting with [A]0 = 9.50 × 10−3M, how long will it take...
A flask is charged with 0.124 mol of A and allowed to react to form B...
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:
The average rate of disappearance of A between 20.0 s and 40.0 s
is ________ mol/s
Select one:
A. 1.4 × 10–3
B. 7.1 × 10–3
C. 8.5 × 10–4
D. 1.7 × 10–3
E. 590
Time (S) 0.0 10.0 20.0 30.0 40.0 Moles of A 0.124...
Given the following data for a chemical reaction, determine whether it is a zero, first, or...
Given the following data for a chemical reaction, determine whether it is a zero, first, or second order reaction, and then calculate the concentration at time = 60 seconds. (Enter in units of M). Time(s) 0 10.0 20.0 30.0 Concentration (M) 0.94 0.82 0.70 0.58
18. From the reaction data below, determine whether the reaction is first-order or second-order. Time (S)...
18. From the reaction data below, determine whether the reaction is first-order or second-order. Time (S) Reactant (M) 6.67 1.59 0.74 0.39 0.16 25 a. First-order. b. Second-order. c. Zero-order. d. Cannot determine. 19. In the Question 18, what is the rate constant for the reaction? a. 0.12 b. 0.15 c. 0.24 d. 0.72 20. In the Question 18, what is the half-life for the reaction? a. 0.2 sec b. 0.6 sec c. 1.0 sec d. 1.3 sec
Consider the first order reaction, AB2 -> AB + B, which has a first order reaction...
Consider the first order reaction, AB2 -> AB + B, which has a first order reaction rate constant of 0.00920 s'. If[AB2] = 0.0100 M at the beginning of the reaction, how many seconds will it take for the concentration to drop to 0.00250 M? a) 151 s b) 75.5 s c) 38.0 s d) 302 s Оа Ob Ос C
For a first-order process, the data in the table below indicate that the reaction rate _1_...
For a first-order process, the data in the table below indicate that the reaction rate _1_ and the ½-life time _2_. Fill in blank 1 and then blank 2 with the correct terms. For A -> products [A] mol/L t min 0.200 0.0 0.100 10.0 0.050 20.0 0.025 30.0 a. 1 decreases; 2 remains the same b. 1 increases; 2 increases c. 1 remains the same; 2 remains the same d. 1 increases; 2 remains the same e. 1 decreases; 2 decreases
PLEASE SHOW ALL STEPS FOR
COMPREHENSION.
The reaction
is the first order in [A]. Consider the following data:
Time
[A] M
0.0
1.60
10.0
0.40
20.0
0.10
The rate constant for this experiment is ______
s-1?.
A – B
days for it to decrease to 0.088 M. The half-life of a first-order reaction is 2.1 days. If the initial concentration of reactant is 0.13 M. It takes a. 1.2 b.1.4 c. 0.85 d.0.51 e. 0.13
A study of the rate of the reaction represented as 2AB gave the following data: Time (s) 0.0 5.0 10.0 15.0 20.0 25.0 30.0 [A] (M) 1.00 0.775 0.625 0.465 0.360 0.285 0.230 3. Determine the average rate of disappearance of A between 0.0 and 10.0 s, and between 10.0 and 20.0 s. 4. What order is the above reaction? What is the rate constant? Hint:You might have to graph the data. For the following reaction: 2NO(g)+C12(g)2NOCI(g) The observed initial...
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:
The average rate of disappearance of A between 20.0 s and 40.0 s
is ________ mol/s
Select one:
A. 1.4 × 10–3
B. 7.1 × 10–3
C. 8.5 × 10–4
D. 1.7 × 10–3
E. 590
Time (S) 0.0 10.0 20.0 30.0 40.0 Moles of A 0.124...
18. From the reaction data below, determine whether the reaction is first-order or second-order. Time (S) Reactant (M) 6.67 1.59 0.74 0.39 0.16 25 a. First-order. b. Second-order. c. Zero-order. d. Cannot determine. 19. In the Question 18, what is the rate constant for the reaction? a. 0.12 b. 0.15 c. 0.24 d. 0.72 20. In the Question 18, what is the half-life for the reaction? a. 0.2 sec b. 0.6 sec c. 1.0 sec d. 1.3 sec
Consider the first order reaction, AB2 -> AB + B, which has a first order reaction rate constant of 0.00920 s'. If[AB2] = 0.0100 M at the beginning of the reaction, how many seconds will it take for the concentration to drop to 0.00250 M? a) 151 s b) 75.5 s c) 38.0 s d) 302 s Оа Ob Ос C
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