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What Is the Half-Life of the First-Order Reaction If It

Question 63

Multiple Choice

What is the half-life of the first-order reaction if it takes 4.4 × 10^-2 seconds for a concentration to decrease from 0.50 M to 0.20 M?

A) 2.5 × 10^-2 s
B) 3.3 × 10^-2 s
C) 1.6 s
D) 21 s
E) 27 s

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