Chapter 15 Quiz

Chapter 15 Quiz - Chemistry 1B Chapter 15 Worksheet - Daley...

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Chemistry 1B Chapter 15 Worksheet - Daley Name___________________________________ 1) The value of K eq for the equilibrium H 2 (g) + I 2 (g) 2 HI (g) is 794 at 25 °C. At this temperature, what is the value of K eq for the equilibrium below? HI (g) 1/2 H 2 (g) + 1/2 I 2 (g) A) 0.035 B) 397 C) 28 D) 1588 E) 0.0013 2) At elevated temperatures, molecular hydrogen and molecular bromine react to partially form hydrogen bromide: H 2 (g) + Br 2 (g) 2HBr (g) A mixture of 0.682 mol of H 2 and 0.440 mol of Br 2 is combined in a reaction vessel with a volume of 2.00 L. At equilibrium at 700 K, there are 0.566 mol of H 2 present. At equilibrium, there are __________ mol of Br 2 present in the reaction vessel. A) 0.566 B) 0.232 C) 0.440 D) 0.324 E) 0.000 3) K p = 0.0198 at 721 K for the reaction 2HI (g) H 2 (g) + I 2 (g) In a particular experiment, the partial pressures of H 2 and I 2 at equilibrium are 0.710 and 0.888 atm, respectively. The partial pressure of HI is __________ atm. A) 1.98 B) 0.389 C) 0.125 D) 7.87 E) 5.64 4) At 200 °C, the equilibrium constant (K p ) for the reaction below is 2.40 × 10 3 . 2NO (g) N 2 (g) + O 2 (g) A closed vessel is charged with 36.1 atm of NO. At equilibrium, the partial pressure of O 2 is __________ atm. A) 6.00 B) 294 C) 18.1 D) 1.50 × 10 - 2 E) 35.7 1
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Chemistry 1B Chapter 15 Worksheet - Daley 5) At 22 °C, K p = 0.070 for the equilibrium: NH 4 HS (s) NH 3 (g) + H 2 S (g) A sample of solid NH 4 HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (atm) of ammonia, assuming that some solid NH 4 HS remains. A) 4.9 × 10 - 3 B) 0.52 C) 0.070 D) 0.26 E) 3.8 6) At equilibrium, __________. A) the
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This note was uploaded on 02/23/2012 for the course CHEM AP taught by Professor Hx during the Fall '11 term at Manitoba.

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Chapter 15 Quiz - Chemistry 1B Chapter 15 Worksheet - Daley...

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