gldenlizz49701 gldenlizz49701

22-02-2024
Chemistry

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A first-order reaction (A → B) has a half-life of 20 minutes. If the initial concentration of A is 0.300 M, what is the concentration of B after 40 minutes? (Do not use a calculator to solve this problem.)

A) 0.075 M
B) 0.150 M
C) 0.225 M
D) 0.300 M

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