Exam-2-E - Fall 2010 CHEMISTRY 104 Section 001 Exam 2 Name:

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Fall 2010 CHEMISTRY 104 Section 001 Exam 2 Name: ______________________ ID: XXX-XX-_ ______ Seat #: ___ 1. At 500.0 K, one mole of gaseous ONCl is placed in a one-liter container. At equilibrium it is 5.1 % dissociated according to the equation shown here: 2ONCl 2NO + Cl 2 . Determine the equilibrium constant. A) 7.4 10-5 B) 1.4 10-3 C) 5.4 10-2 D) 9.5 10-1 E) 1.4 10 4 2. Given the equation The equilibrium constant is about 0.0215 at 115C. Calculate K p . A) 0.0215 B) 0.685 C) 0.203 D) 21.8 E) none of these 3. At -80C, K for the reaction is 4.66 10-8 . We introduce 0.042 mole of N 2 O 4 into a 1.0-L vessel at -80C and let equilibrium be established. The total pressure in the system at equilibrium will be: A) 0.28 atm B) 0.67 atm C) 1.2 atm D) 0.042 atm E) none of these Page 1 4. The reaction has K p = 45.9 at 763 K. A particular equilibrium mixture at that temperature contains gaseous HI at a partial pressure of 4.00 atm and hydrogen gas at a partial pressure of 0.273 atm. What is the partial pressure of I 2 ? A) 0.273 atm B) 0.319 atm C) 1.28 atm D) 10.7 atm E) 58.6 atm 5. Consider the reaction: CaCl 2 (s) + 2H 2 O(g) CaCl 2 2H 2 O(s) The equilibrium constant for the reaction as written is A) K = B) C) D) K = [H 2 O] 2 E) K = 6. For the reaction given below, 2.00 moles of A and 3.00 moles of B are placed in a 6.00-L container. At equilibrium, the concentration of A is 0.219 mol/L. What is the value of K ? A) 1.92 B) 1.55 C) 0.219 D) 7.09 E) 0.522 4. The reaction has K p = 45.9 at 763 K. A particular equilibrium mixture at that temperature contains gaseous HI at a partial pressure of 4.00 atm and hydrogen gas at a partial pressure of 0.273 atm. What is the partial pressure of I 2 ? A) 0.273 atm B) 0.319 atm C) 1.28 atm D) 10.7 atm E) 58.6 atm 5. Consider the reaction: CaCl 2 (s) + 2H 2 O(g) CaCl 2 2H 2 O(s) The equilibrium constant for the reaction as written is A) K = B) C) D) K = [H 2 O] 2 E) K = 6. For the reaction given below, 2.00 moles of A and 3.00 moles of B are placed in a 6.00-L container.6....
View Full Document

This note was uploaded on 02/25/2011 for the course CHEM 222 taught by Professor Harding during the Fall '08 term at CUNY Hunter.

Page1 / 11

Exam-2-E - Fall 2010 CHEMISTRY 104 Section 001 Exam 2 Name:

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online