Question

A chemist is conducting an experiment which involves a certain chemical reaction. He begins the experiment with 666 milliliters of the chemical, which is consumed by the reaction at a varying rate that is no more than 13 milliliters per minute. Partway through the experiment, the chemist measures the amount of chemical remaining. If there are 562 milliliters of the chemical left, what is the smallest number of minutes that could have passed

Answer 1

To find the answer we can first find the amount consumed by reaction by deducting 562 from 666:

666-562

=104 mL

We can then proceed to find the minutes by dividing the consumed amount by 13:

104 ÷ 13

=8 minutes

Therefor the smallest number of minutes that could have passed is 8 minutes.

Hope it helps!