SHOW ALL WORK FOR PROBLEMS BELOW. ALSO USE CORRECT SIG FIGS. 2.) Stoichiometry - Mole to Mole conversions a. How many moles of O2 are required to react with 6.75 moles of C2H6? 2C2H6 + 7O2 ----> 4CO2 + 6H2O b. How many moles of O2 are produced by 6.75 moles of KClO3
SHOW ALL WORK FOR PROBLEMS BELOW. ALSO USE CORRECT SIG FIGS.
2.) Stoichiometry - Mole to Mole conversions
a. How many moles of O2 are required to react with 6.75 moles of C2H6?
2C2H6 + 7O2 ----> 4CO2 + 6H2O
b. How many moles of O2 are produced by 6.75 moles of KClO3
2KClO3 ------> 2KCl + 3O2
3. Stoichiometry - Equimolar Reactions
a. How many grams of Cl2 is needed to react with 20.0 grams of P4
P4 + 6Cl2 ----> 4PCl3
b. How many grams of H2O is needed to react with 20.0 grams of P4O10
P4O10 + 6H2O -----> 4H3PO4
4.) Stoichiometry - gram to gram.
A student carried out the reaction shown by reacting 10.0g P4 with excess Cl2 and
obtained 35.0g of PCl3.
P4 + 6Cl2 ----> 4PCl3.
a. What is the theoretical yield of PCl3 ?
b. Calculate the % yield of PCl3
5. Stoichiometry - Grams to Grams - Determination of Limiting Reactant
For the following reaction, 20.0 grams of Fe2O3 was reacted with 20.0 grams of CO: See Full Stoichiometry Problem Video
Fe2O3 + CO →Fe + CO2
a. Balance the reaction.
b. Which reactant is the limiting reactant?
c. Calculate the theoretical yield of Fe.
d. Calculate the percent yield if the actual yield was 12.3 grams of
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