12) In an experiment, (120 + Y) mL 0.6 M Na2SO4 solution is mixed with 300 mL 0.45 M BaCiz solution and BaSO4 precipitate (solid) is formed according to the below reaction. Calculate the
amount of precipitate in grams.. (Atomic mass: Na = 23, 0 = 16, S = 32, Ba = 137, CI= 35)
NazSO4(aq) + BaC2(aq) -> 2NaCI(aq) + BaSO4(S)