Density is defined as the mass per unit volume. formula is as follows [tex]density = \frac{mass}{volume} [/tex] we have been given the density and volume so we need to find the mass of ethylene glycol if we rearrange the equation making mass the subject mass = density x volume density = 1.11 g/cm³ this means that 1 cm³ of solution has a mass of 1.11 g since mL = cm³ therefore 387 cm³ of solution has a mass of 1.11 g/cm³ x 387 cm³ = 429.6 g mass of ethylene glycol is 429.6 g
