Question

The first-order reaction A ? B has a rate constant of 0.0643 s?¹. How many seconds will it take for 35.2% of A to react? Hint: 35.2 can be considered in a ratio to a starting original "amount" of 100 16.23 s -16.23 s 64.9 s 6.75 s 6.75 s?¹

          The first-order reaction A ? B has a rate constant of 0.0643 s?¹. How many seconds will it take for 35.2% of A to react? Hint: 35.2 can be considered in a ratio to a starting original "amount" of 100
16.23 s
-16.23 s
64.9 s
6.75 s
6.75 s?¹

The first-order reaction A ? B has a rate constant of 0.0643 s?¹. How many seconds will it take for 35.2% of A to react? Hint: 35.2 can be considered in a ratio to a starting original "amount" of 100
16.23 s
-16.23 s
64.9 s
6.75 s
6.75 s?¹

Added by Jose Francisco C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

07/27/2023

Step 1

The half-life of a first-order reaction can be calculated using the formula: t1/2 = ln(2) / k, where t1/2 is the half-life and k is the rate constant. In this case, the rate constant is given as 0.0643 s^-1. So, t1/2 = ln(2) / 0.0643 = 10.77 s (approximately). Show more…

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