What mass of salt will be produced if 140g of Sulfur are reacted? Li2O + H2O 2LiOH A scientist reacts 13g of water with Lithium oxide, how much Lithium Hydroxide will be made? The answer is the theoretical yield. If only 3g are actually made what is the % yield? Actual yield / theoretical yield x 100 = % yield Task 12 Calculations practice – Formula mass Determine the Mr of the following compounds: Compound H2O CO2 NH3 CaCO3 Mr 18.0 44.0 17.0 98.1 100.1 109.9 132.1 262.9 164.1 Answers (not in order, plus some extra so you can’t guess) 17.0 20.2 44.0 18.0 132.1 38.2 100.1 262.9 164.1 303.3 109.9 98.8 227.3 63.1 Percent composition
What mass of salt will be produced if 140g of Sulfur are reacted? Li2O + H2O 2LiOH A scientist reacts 13g of water with Lithium oxide, how much Lithium Hydroxide will be made? The answer is the theoretical yield. If only 3g are actually made what is the % yield? Actual yield / theoretical yield x 100 = % yield Task 12 – Calculations practice Formula mass Determine the Mr of the following compounds: Compound H2O CO2 NH3 CaCO3 Mr 18.0 44.0 17.0 98.1 100.1 109.9 132.1 262.9 164.1 Answers (not in order, plus some extra so you can’t guess) 17.0 20.2 44.0 18.0 132.1 38.2 100.1 262.9 164.1 303.3 109.9 98.8 227.3 63.1 Percent composition