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Hon 3 6-3 7 Review-key reaction Stoichiometry

This fashion a 0133 b 0800 c 00667 d 120 e 0200

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this fashion? A) 0.133 B) 0.800 C) 0.0667 D) 1.20 E) 0.200 Answer: A 12) The combustion of propane (C 3 H 8 ) in the presence of excess oxygen yields CO 2 and H 2 O: C 3 H 8 (g) + 5 O 2 (g) 3CO 2 (g) + 4 H 2 O (g) When 2.5 mol of O 2 are consumed in their reaction, __________ mol of CO 2 are produced. A) 1.5 B) 3.0 C) 5.0 D) 6.0 E) 2.5 Answer: A 13) For the reaction 2H 2 + O 2 → 2H 2 O, how many grams of water are produced from 6.00 mol of hydrogen? 14) For the reaction CH 4 + 2O 2 → CO 2 + 2H 2 O, how many moles of carbon dioxide are produced from the combustion of 100. g of methane? 15) For the reaction Pb(NO 3 ) 2 + 2KI → PbI 2 + 2KNO 3 , how many moles of lead iodide are produced from 300. g of potassium iodide?
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16) The combustion of ammonia in the presence of excess oxygen yields NO 2 and H 2 O: 4 NH 3 (g) + 7 O 2 (g) 4 NO 2 (g) + 6 H 2 O (g) The combustion of 43.9 g of ammonia produces __________ g of NO 2 . A) 2.58 B) 178 C) 119 D) 0.954 E) 43.9 Answer: C 17) Calcium carbide (CaC 2 ) reacts with water to produce acetylene (C 2 H 2 ): CaC 2 (s) + 2 H 2 O (g) Ca(OH) 2 (s) + C 2 H 2 (g) Production of 13 g of C 2 H 2 requires consumption of __________ g of H 2 O. A) 4.5 B) 9.0 C) 18 D) 4.8 × 10 2 E) 4.8 × 10 -2 Answer: C 18) Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N 2 (g) + 3 H 2 (g) 2NH 3 (g) A 7.1-g sample of N 2 requires __________ g of H
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