Chemistry, asked by Manikbhatia2339, 10 months ago

A chemical substance has a half life of 5 years. A chemist currently has 2000 grams of the substance. If the substance remains untouched, after 25 years, how much of the substance will be left?

Answers

Answered by Mrkhan27

0

Hi Dear

Shortcut

First calculate number of half lives. Here given 25/5 I.e. there are 5 half lives.
No Formula is initial/2^n.So initial 2000/2^5 which comes out to be 62.5 g

hope you understood

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