Question

In what mass of water must 25g of cuso4.5h2o be dissolved to obtain an 8 solution of cuso4

Answer 1

mass of solute/ mass of solution * 100 = mass % of soln.25g / mass of solvent + 25) * 100 = 8 On solving, we get mass of water as:287.5 gmand mass of soln. is solute mass + solvent mass.i.e 312.5 gm