Question

12.8 cm^3 of benzene is dissolved in 16.8cm^3 of xylene. Calculate percentage by volume of benzene

Answer 1

Given that,

V1 (xylene) = 16.8 cm³

V2 (benzene) = 12.8 cm³

Total volume (V) = 16.8 + 12.8 cm³ = 29.6 cm³

Now, 

% volume = V2/V​1 x 100

= 12.8 / 29.6 x 100

= 43.24%