Titration of the reduced sample required 40.12mL of the AgNO3 solution. Calculate the percentages of Cland ClO4in the sample. h) A 1.998-g sample containing Cl and ClO4was dissolved in sufficient water to give 250.0mL of solution. A 50.00mL aliquot required 13.97mL of 0.08551MAgNO3 to titrate the Cl. A second 50.00mL aliquot was treated with V2(SO4)3 to reduce the ClO4to Cl: ClO4++4V2(SO4)3+4H2OCl+12SO42+8VO2++8H+