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18 Nov 2019

For the first order decomposition of acetone at 650 K, the concentration of acetone was 0.320 M after 20.0 min and 0.100 M after 41.0 min.

(a) What is the value of the rate constant?
_s^-1

(b) What is the half life?
_s

(c) What was the initial concentration of acetone?
____M

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Keith LeannonLv2

22 May 2019

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Acetoacetic acid, CH₃COCH₂COOH, decompoes in aqueous acididc solution to form acetone and carbon dioxide:

CH₃COCH₂COOH(aq) --> CH₃COCH₂(aq) + CO₂(g)

The reaction is first order. At room temperature, the half life of the reactant is 139 min.

a. What is the constant of the decomposition reaction?

b. If the initial concentration of the acetoacetic acid is 2.75 M, what is the concentration after 5 hours?

A.) The rate constant for this first-order reaction is 0.650 sâ1 at 400 Â°C. How long (in seconds) would it take for the concentration of A to decrease from 0.690 M to 0.320 M?
B.) The rate constant for the reaction is 0.230 Mâ1Â·sâ1 at 200 Â°C. If the initial concentration of A is 0.00270 M, what will be the concentration after 335 s?
C.) After 53.0 min, 31.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?

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For the first order decomposition of acetone at 650 K, the concentration of acetone was 0.320 M after 20.0 min and 0.100 M after 41.0 min.

(a) What is the value of the rate constant?
_s^-1

(b) What is the half life?
_s

(c) What was the initial concentration of acetone?
____M

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For the first order decomposition of acetone at 650 K, the concentration of acetone was 0.320 M after 20.0 min and 0.100 M after 41.0 min. (a) What is the value of the rate constant? ___s-1 (b) What is the half life? ___s (c) What was the initial concentration of acetone? ____M

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Related textbook solutions

Basic Chemistry

Principles of Chemistry Molecular Approach

Principles of Chemistry Molecular Approach

Chemistry: Structure and Properties

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Principles of Chemistry: A Molecular Approach

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Related questions

Weekly leaderboard

For the first order decomposition of acetone at 650 K, the concentration of acetone was 0.320 M after 20.0 min and 0.100 M after 41.0 min.

(a) What is the value of the rate constant?
_s^-1

(b) What is the half life?
_s

(c) What was the initial concentration of acetone?
____M