# quiz 6 - Version 189 – Quiz 5 – Laude –(53590 1 This...

This preview shows pages 1–2. Sign up to view the full content.

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Version 189 – Quiz 5 – Laude – (53590) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Consider the reaction 2 NOCl(g) → 2 NO(g) + Cl 2 (g) with rate constant 0.0480 M − 1 · s − 1 when con- ducted at 200 ◦ C. The initial concentration of NOCl was 0.521 M. What is the concentration of NOCl after 0.535 minutes and at 200 ◦ C? 1. 0.200 M correct 2. 0.112 M 3. 0.289 M 4. 0.0239 M 5. 0.508 M Explanation: k = 0 . 0480 M − 1 · s − 1 t = 0 . 535 min [A] = 0.521 M The units on k indicates a second order reaction: 1 [A] t- 1 [A] = a k t 1 [A] t = 1 [A] + a k t = 1 . 521 M +2(0 . 0480 M − 1 · s − 1 ) × (0 . 535 min) × 60 . 0 s min = 5 . 00 M − 1 [A] t = 0 . 200 M 002 10.0 points A hypothetical reaction A + 2 B → C + D is found to be first order in A and second order in B. What are the units of k , the specific rate constant, if reaction rate is expressed in units of M/s? 1. M − 1 · s 2. M · s − 1 3. M 2 · s − 1 4. M − 2 · s − 1 correct 5. M − 3 · s Explanation: 003 10.0 points10....
View Full Document

{[ snackBarMessage ]}

### Page1 / 3

quiz 6 - Version 189 – Quiz 5 – Laude –(53590 1 This...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online