When 35mL of 0.15M lead nitrate solution is mixed with 20mL of 0.12M chromic sulphate solution, _____________ x 10-5 moles of lead sulphate precipitate out.(Round off to the Nearest integer).

3PbNO32+Cr2SO43→3PbSO4+2CrNO33 Initial     35×0.15       20×0.12              =5.25 2.4                -reacted 5.25   5.253                  5.25left        - 2.4−5.253               5.25m.moles of PbSO4 =5.25     moles of PbSO4=5.25×10−3        525×10−5