Question 111.34 of hydrated sodium tetraoxosulphate (VI) was heated to give an anhydrous salt weighing 0.71g. The formula of the hydrated salt is _______ [Na = 23, S = 32, O = 16, H = 1]A.Na2SO4.3H2OB.Na2SO4.7H2OC.Na2SO4.2H2OD.Na2SO4.H2OObjective Show full explanation