how do i do part c? The density of an aqueous solution containing 10.0 percent of…

how do i do part c?
The density of an aqueous solution containing 10.0 percent of ethanol (C_2H_3OH) by mass is 0.984 g/mL. (a) Calculate the modality of this solution. (b) Calculate its modality. (c) What volume of the solution would contain 0.125 mole of ethanol?