Frog-61 Project 001_026 (Private/Restricted Access)

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Mass to Mass Stoichiometry Problems
In the following problems, calculate how much of the indicated product is made. Show all your work. 1) LiOH + HBr → LiBr + H2O If you start with 10.0 grams of lithium hydroxide, how many grams of lithium bromide will be produced? 2) C2H4 + 3 O2 → 2 CO2 + 2 H2O If you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced? 3) Mg + 2 NaF → MgF2 + 2 Na If you start with 5.5 grams of sodium fluoride, how many grams of magnesium fluoride will be produced? 4) 2 HCl + Na2SO4 → 2 NaCl + H2SO4 If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid will be produced?

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For chemistry help, visit www.chemfiesta.com © 2013 Cavalcade Publishing – All Rights Reserved
Mass to Mass Stoichiometry Problems – Answer Key
In the following problems, calculate how much of the indicated product is made. Show all your work. 1) LiOH + HBr → LiBr + H2O If you start with 10.0 grams of lithium hydroxide, how many grams of lithium bromide will be produced? 36.3 grams 2) C2H4 + 3 O2 → 2 CO2 + 2 H2O If you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced? 140 grams 3) Mg + 2 NaF → MgF2 + 2 Na If you start with 5.5 grams of sodium fluoride, how many grams of magnesium fluoride will be produced? 4.1 grams 4) 2 HCl + Na2SO4 → 2 NaCl + H2SO4 If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid will be produced? 30 grams (rounded from 27 grams for
significant figures)