What is the percentage by weight of nitrogen in Cu(NO3)2?
What is the molar mass of NaBr?
Correctly fill in the stoichiometric problem to answer the following question.
How many grams of water are produced by 3.75 g of calcium hydroxide.
3Ca(OH)2 + 2H3PO4 --> Ca3(PO4)2 + 6H2O
X X X
18.02 g H2O 1 mole H2O
6 moles H2O 3 moles Ca(OH)2
3.75 g Ca(OH)2 1
1 mole Ca(OH)2 74.19 g Ca(OH)2
If 45.2 g of H2 was used in the reaction below. What is the actual yield of water if the reaction was 92.4% efficient?
2H2 + O2 --> 2H2O