John R. answered 03/19/20
Gen. Chem Tutor with Bach of Science Degree, 20+ years Teaching Exp.
Divide the given mass of Ba(NO3)2 by its molar mass to find the number of moles that will be reacting. The balanced equation shows that for each mole of Ba(NO3)2 that reacts, one mole of BaSO4 is produced, so the name number of moles of BaSO4 will be formed. Lastly, multiply by the molar mass of BaSO4 to get your final answer.