worksheet 13cgt - Worksheet # 13 Stoichiometry 1. A...

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Worksheet 13 1 Worksheet # 13 Stoichiometry 1. A laboratory method of preparing O 2 gas involves the decomposition of solid KClO 3 according to the following unbalanced equation: KClO 3 (s) KCl(s) + O 2 (g) a) How many moles of O 2 (g) can be produced by the decomposition of 32.8 g KClO 3 ? b) How many grams of KClO 3 must be decomposed to produce 50.0 g O 2 ? c) How many grams of KCl are formed when 23.8 grams O 2 are formed in the decomposition of KClO 3 ? 2. Suppose 9.5 g of gaseous C 2 H 2 reacts with excess O 2 according to the reaction below. What is the mass of CO 2 produced? C 2 H 2 (g) + O 2 (g) CO 2 (g) + H 2 O( ) 3. Chlorine gas is made in the laboratory by the reaction of gaseous hydrochloric acid with solid manganese(IV) oxide to produce aqueous manganese(II) chloride, water, and chlorine. If 13.7 g of manganese(IV) oxide reacts with excess hydrochloric acid, how much chlorine is formed? 4. Solid bismuth oxide can react with carbon to form bismuth metal and carbon monoxide. How many grams of bismuth oxide reacted if 60.7 grams of bismuth is formed? 5. Solid chromium(III) oxide can react with gaseous hydrogen sulfide to form solid chromium(III) sulfide and water. How many grams of chromium(III) oxide are required to form 83.4 g of chromium(III) sulfide?
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worksheet 13cgt - Worksheet # 13 Stoichiometry 1. A...

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