Calculate the amount of 53 I 128 ( t 1 / 2 = 25 m i n ) left after 75 minutes.

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Question: Answered & Verified by Expert

Calculate the amount of

_{53} I^{128} (t_{1 / 2} = 25 m i n)

left after 75 minutes.

ChemistryChemical KineticsNEET

Options:

A $1 / 4$
B $1 / 6$
C $1 / 8$
D $1 / 9$

Solution:

1275 Upvotes Verified Answer

The correct answer is:

1 / 8

\frac{N}{N_{0}} = {(\frac{1}{2})}^{\frac{t}{t_{1/2}}}; \frac{N}{N_{0}} = {(\frac{1}{2})}^{\frac{75}{25}}

N = amount at time t

t = total time

N_{0} = initial amount

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