2 years ago

Acid-Base Chemistry 1:Question 10

Chemistry

1 answer:

Alex777 [14]2 years ago

6 0

The hydronium ions increase and the ph goes down.

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If a radioactive isotope has a half-life of 26.5 days, how many days does it take for a sample of the isotope to decrease by 35.

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Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

Where,

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$[A_0]$ is the initial concentration

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$\frac {[A_t]}{[A_0]}$ = 1 - 0.35 = 0.65

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$\frac {[A_t]}{[A_0]}=e^{-k\times t}$

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