Question

After five half life period of first order reaction what fraction of the reactant remained

Answer 1

Answer:

Explanation:

N=N0/(2^5)=N0/32

so,1/32 part will remain

Answer 2

Answer:

Thus a first-order chemical reaction is 97% complete after 5 half-lives and 100% complete after 10 half-lives.

...

Half-Lives and Radioactive Decay Kinetics.

Number of Half-Lives Percentage of Reactant Remaining

3 25%2=12.5% 12(12)(12)(100%)=12.5%

n 100%2n (12)n(100%)=(12)n%

2 more rows•May 18, 2020