If law of conservation of mass was to hold true, then 20.8 gm of BaCl2 on reaction with 9.8 gm of H2SO4 will produce 7.3 gm of HCl and BaSO4 equal to : 11.65 g 23 g 25.5 g 36 g

BaCl2 + Na2SO4   —>

Calculate the mass of hydrogen formed when 81 g of aluminum reacts with excess hydrochloric acid according to the balanced equation below.Al + HCl → AlCl3 + H2

In a reaction vessel, 0.600 mol of Ba(NO 3) 2(s) and 0.300 mol of H3 PO4 (aq) are combined with deionizedwater to a final volume of 2.00 L. The reaction represented below occurs.3 Ba(NO3) 2(aq) + 2 H3 PO4 (aq)  Ba3 (PO4 )2 (s) + 6 HNO3 (aq)(i) Calculate the mass of Ba 3(PO4 )2 (s) formed.(ii) Calculate the pH of the resulting solution.(iii) What is the concentration, in mol L–1 , of the nitrate ion, NO3– (aq), after the reaction reachescompletion?

What is the predicted change in the boiling point of water when 1.50 g of barium chloride (BaCl2) is dissolved in 1.50 kg of water?Kb of water = 0.51°C/molmolar mass BaCl2 = 208.23 g/moli value of BaCl2 = 3A.0.51°CB.-0.00082°CC.0.0073°CD.-0.0024°C

Calculate the mass of 0.456 moles of chlorous acid (HClO2).