Answered: gallium-67? What are the units for k?

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Chemistry

gallium-67? What are the units for k?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

The half-life for gallium-67, a radioisotope, is 78.25 hours. What is the value of the rate constant, k, for gallium-67? What are the units for k?

Expert Solution

Step 1

Half life time(t_1/2) = 78.25 hrs

Aa we know Radioactive decay follows first order kinetics

Rate constant (k) = 0.693/t_1/2

k = 0.693/78.25

= 8.86 ×10^-3 hr^-1

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