Balancing Equations and Stoichiometry - Woodridge Local Schools

Balancing Equations and StoichiometryAnswers are provided on the second sheet. Please try to do the worksheetwithout referring to them, because you’ll be expected to know this stuff on thetest!Balance the following equations:1) ___ N 2 + ___ F 2 ___ NF 32) ___ C 6 H 10 + ___ O 2 ___ CO 2 + ___ H 2 O3) ___ HBr + ___ KHCO 3 ___ H 2 O + ___ KBr + ___ CO 24) ___ GaBr 3 + ___ Na 2 SO 3 ___ Ga 2 (SO 3 ) 3 + ___ NaBr5) ___ SnO + ___ NF 3 ___ SnF 2 + ___ N 2 O 3Using the equation from problem 2 above, answer the following questions:6) If I do this reaction with 35.0 grams of C 6 H 10 and 45.0 grams of oxygen,how many grams of carbon dioxide will be formed?7) What is the limiting reagent for problem 6? ___________8) How much of the excess reagent is left over after the reaction fromproblem 6 is finished?9) If 35 grams of carbon dioxide are actually formed from the reaction inproblem 6, what is the percent yield of this reaction?

Balancing Equations and StoichiometryAnswers are provided on the second sheet. Please try to do the worksheetwithout referring to them, because you’ll be expected to know this stuff the firstday of school!Balance the following equations:1) 1 N 2 + 3 F 2 2 NF 32) 2 C 6 H 10 + 17 O 2 12 CO 2 + 10 H 2 O3) 1 HBr + 1 KHCO 3 1 H 2 O + 1 KBr + 1 CO 24) 2 GaBr 3 + 3 Na 2 SO 3 1 Ga 2 (SO 3 ) 3 + 6 NaBr5) 3 SnO + 2 NF 3 3 SnF 2 + 1 N 2 O 3Using the equation from problem 2 above, answer the following questions:6) If I do this reaction with 35.0 grams of C 6 H 10 and 45.0 grams of oxygen,how many grams of carbon dioxide will be formed?35.0 g C 6 H 10 1 mol C 6 H 10 12 mol CO 2 44.00 g CO 282.00 g C 6 H 10 2 mol C 6 H 10 1 mol CO 2= 133 g CO 245.0 g O 2 1 mol O 2 12 mol CO 2 44.00 g CO 232.00 g O 2 17 mol O 2 1 mol CO 2= 43.7 g CO 2When you do this calculation for 35 grams of C 6 H 10 , you find that 113grams of CO 2 will be formed. When you do the calculation for 45grams of oxygen, you find that 43.7 grams of CO 2 will be formed.Because 43.7 grams is the smaller number, oxygen is the limitingreagent, forming 43.7 grams of product.

7) What is the limiting reagent for problem 6? oxygen8) How much of the excess reagent is left over after the reaction fromproblem 6 is finished?21.4 grams of C 6 H 10 will be left over.9) If 35 grams of carbon dioxide are actually formed from the reaction inproblem 6, what is the percent yield of this reaction?80.1%