Drysol is a mixture of aluminum chloride hexahydrate and an alcohol base.
Mass of aluminum chloride hexahydrate = 15 g
Assuming the density of alcohol base to be 1 g/mL
Mass of alcohol base = [tex] 84 mL * \frac{1 g}{mL} = 84 g [/tex]
Total mass of the mixture = 15 g + 84 g = 99 g
Mass % of the mixture = [tex] \frac{15 g}{99g} * 100 [/tex]
= 15.2 %