Moles, Density, Fraction & Concentration on Chemical Engineering related Questions and Answers

Question :   What is the density of a liquid of mass 20 kg, enclosed in a cuboid of surface areas of three sides as 1 m2, 2 m2, 5 m2, and one of its sides is 2 m? 1. 1 kg/m3 2. 2 kg/m3 3. 3 kg/m3 4. 4 kg/m3 Answer :   2 - 2 kg/m3