What is the molality of a solution of 63.0 g HNO3 in 0.25 kg of H20?

Nonmetal halogen family atmoic mass 35

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

What is the percentage composition of carbon in the compound ch4