Find the mass of oxygen present in a 7.50L flask at 27.0C and 0.850atm Brainliest to first answer.

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 molar mass of a gas that has density of 2.054 g/l

How many grams are in 68.2 molecules of br2?