Question

calculate mass percentage of benzene and carbon tetrachloride if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.

Answer 1

Mass % of benzene = (Mass of benzene in the solution / Total mass of solution) x 100 = [22/(22+122)] x 100 = 15.27 %

similarly,

Mass % of carbontetrachloride = (Mass of carbontetrachloride in the solution / Total mass of solution) x 100 = [122/(22+122)] x 100 = 84.73%