Unit 10 Review Level

# Unit 10 Review Level - 2 g → NH 3 g(11 Use the equation...

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Unit 10: Stoichiometry Review (1) Define the following terms: a. Stoichiometry b. Limiting Reagent c. Excess Reagent d. Percent Yield e. Actual Yield f. Theoretical Yield g. Empirical formula h. Molecular formula (2) Calculate the molar mass of each of the following compounds: a. NaCl b. Ba 3 (PO 4 ) 2 (3) How many grams are in 6.5 moles of BaCl 2 ? (4) How many moles are in 85.2 grams of Fe 2 O 3 ? (5) How many atoms are in 0.6144 mol of copper? (6) Calculate the number of molecules in 3.5 grams of CO 2 . (7) Calculate the percentage composition of copper inCu 2 S. (8) Determine the empirical formula for a compound which is 67.6% Hg, 10.8% S and 21.6% O. (9) Calculate the molecular formula of a compound whose molar mass is 90.0 g and empirical formula is CH 4 N.

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(10) Use the equation below to answer the following question. How many moles of hydrogen gas are required to react completely with 5.5 moles of nitrogen gas? ___ N 2 ( g ) + ___ H
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Unformatted text preview: 2 ( g ) → ___ NH 3 ( g ) (11) Use the equation below to answer the following question. How many moles of aluminum are required to react completely with 75 g of hydrochloric acid? ___ Al + ___ HCl → ___ AlCl 3 + ___ H 2 (12) Use the equation below to answer the following question. How many grams of silver chloride are produced from 5.0 g of silver nitrate reacting with an excess of barium chloride? ___ AgNO 3 + ___ BaCl 2 → ___ AgCl + ___ Ba(NO 3 ) 2 (13) How many liters of oxygen gas are required to completely react with 32 L of hydrogen gas? ___ H 2 + ___ O 2 ___ H 2 O (14) What is the limiting reactant when 50.0 g of Mg reacts with 75 g of HCl using the equation below? ___ Mg + ___ HCl ___ MgCl 2 + ___ H 2 (15) If 8.87 g of As 2 O 3 is used in the reaction below and 5.33 g of As is produced, what is the percent yield? 2 As 2 O 3 + 3 C 3 CO 2 + 4 As...
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## This note was uploaded on 02/14/2012 for the course CH 101 taught by Professor Sutcliffe during the Fall '08 term at University of Texas.

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Unit 10 Review Level - 2 g → NH 3 g(11 Use the equation...

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