Excess ( NH4)2SO4 was added to a 55.0 mL solution containing BaCl2 (MW = 208.23 g/mol). The resulting BaSO 4 (MW = 233.43 g/mol) precipitate had a mass of 0.3168 g after it was filtered and dried.
What is the molarity of BaCl2 in the solution?

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh

Word equation for k+ h2o yield koh + h2