Question

The first-order reaction X ? Y has a rate constant of 0.00220 s?¹. The starting concentration of X is 4.600 M. After 100.0 seconds have elapsed, what is the concentration (in M) of X? Express your answer to 4 significant figures and do not use scientific notation.

          The first-order reaction X ? Y has a rate constant of 0.00220 s?¹. The starting concentration of X is 4.600 M. After 100.0 seconds have elapsed, what is the concentration (in M) of X?
Express your answer to 4 significant figures and do not use scientific notation.

The first-order reaction X ? Y has a rate constant of 0.00220 s?¹. The starting concentration of X is 4.600 M. After 100.0 seconds have elapsed, what is the concentration (in M) of X?
Express your answer to 4 significant figures and do not use scientific notation.

Added by Justin M.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Chareen Guzman

03/20/2023

Step 1

We know the reaction is first-order, so we can use the first-order integrated rate law: $$ \ln\frac{[X]_0}{[X]} = kt $$ Show more…

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The first-order reaction X → Y has a rate constant of 0.00220 s⁻¹. The starting concentration of X is 4.600 M. After 100.0 seconds have elapsed, what is the concentration (in M) of X? Express your answer to 4 significant figures and do not use scientific notation.