Question

What will be the volume percent of a solution prepared by dissolving 15cm^3 of menthanol in 100cm^3of ethanol ?

Answer 1

v%=(15/(100+15))*100
(15/115)*100
= 13.04 %

Answer 2

Volume Percentage of methanol- 15/115=0.1304×100=13.04
Volume Percentage of ethanol=. 100÷115=0.8695×100=86.95
Percentage of solution=86.95+13.04=99.99=100