Midterm-2 - MULTIPLE CHOICE(1 pt each Choose the one alternative that best completes the statement or answers the question(QUESTIONS 1-5 What will

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

View Full Document Right Arrow Icon
MULTIPLE CHOICE. (1 pt. each) Choose the one alternative that best completes the statement or answers the question. (QUESTIONS 1 - 5) What will happen to the following system at equilibrium when the following actions are taken? CO 2 (g) + 2NH 3 (g) ± H 2 NCONH 2 (s) + H 2 O(g), P = - 89.62 kJ A) shift right B) shift left C) no shift 1) Remove most of the urea as it is formed. 1) 2) Heat the reaction vessel. 2) 3) Add a drying agent to remove water vapor. 3) 4) Increases the total pressure by adding Ar gas. 4) 5) Allow the system to expand into an evacuated flask. 5) 6) What is Kp for the following reaction? 4KO 2 (s) + 2CO 2 (g) ± 2K 2 CO 3 (s) + 3O 2 (g) Kc = 1.17 at 298K 6) A) 4.56 x 10 - 3 B) 327 C) 28.6 D) 0.0490 E) 1.17 7) A 0.682 g sample of ICl (162.4 g/mol) is placed in a 625 mL reaction flask at 682 K. At equilibrium, 0.0383 g of I 2 (253.8 g/mol) are present. 2ICl(g) ± I 2 (g) + Cl 2 (g) Kc = ? What is Kc for this reaction? 7) A) 1.49 x 10 - 3 B) 1.51 x 10 - 2 C) 0.931 D) 1.11 E) 4.30 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
8) The following reaction is allowed to reach equilibrium in a 5.00 L flask: 2SO 3 (g) ± O 2 (g) + 2SO 2 (g) Kc = 0.028 If the concentration of SO 3 and SO 2 are equal at equilibrium, what is the equilibrium concentration of O 2 ? 8) A) 1.6 x 10 - 3 M B) 2.4 M C) 0.17 M D) 0.028 M E) not enough information 9) Silver metal is added to 275 mL of a solution containing: [Fe 3 + ] = 0.300 M, [Fe 2 + ] = 0.100 M, and [Ag + ] = 0.200 M. What will be the concentration of Fe 3 + once equilibrium is established? Fe
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/12/2012 for the course CHEM 1 taught by Professor Deceutt during the Spring '11 term at Santa Monica.

Page1 / 8

Midterm-2 - MULTIPLE CHOICE(1 pt each Choose the one alternative that best completes the statement or answers the question(QUESTIONS 1-5 What will

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