hw6 - amg2845 – hw06 – McCord –(53580 1 This...

Info iconThis preview shows pages 1–2. 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: amg2845 – hw06 – McCord – (53580) 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points Which of the five solutions below is most ba- sic? 1. 0.10 M CH 3 COOH and 0.20 M NaCH 3 COO 2. 0.10 M CH 3 COOH and 0.10 M NaCH 3 COO 3. 0.10 M aq NH 3 and 0.10 M NH 4 Cl 4. 0.10 M aq NH 3 and 0.20 M NH 4 Cl 5. 0.10 M HClO and 0.10 M NaClO 002 10.0 points Carbonic acid (H 2 CO 3 ) is a diprotic acid with K a1 = 4 . 2 × 10- 7 and K a2 = 4 . 8 × 10- 11 . The ion product for water is K w = 1 . × 10- 14 . What is the [HCO- 3 ] concentration in a 0.037 M H 2 CO 3 solution? 1. 4 . 2 × 10- 7 M 2. 3 . 7 × 10- 2 M 3. 1 . 6 × 10- 8 M 4. 4 . 8 × 10- 11 M 5. 1 . 2 × 10- 4 M 003 10.0 points A 0.50 M solution of dimethylamine (a weak base with K b = 7 . 4 × 10- 4 ) would be resistant to large changes of pH Z1) when a strong acid is added, but not if a strong base is added....
View Full Document

This homework help was uploaded on 03/19/2008 for the course CH 302 taught by Professor Holcombe during the Spring '07 term at University of Texas.

Page1 / 3

hw6 - amg2845 – hw06 – McCord –(53580 1 This...

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

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