HW 5 - Wright, Jacqueline Homework 5 Due: Oct 10 2007,...

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: Wright, Jacqueline Homework 5 Due: Oct 10 2007, 11:00 pm Inst: James Holcombe 1 This print-out should have 28 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points Acetic acid (CH 3 COOH) is generally classi- fied as 1. a weak base because it only partially ion- izes in solution. 2. a weak acid because it only partially ion- izes in solution. 3. a weak acid because it has three hydro- gens and a hydroxyl group. 4. a strong acid because it has four hydro- gens. 5. a weak base because it has one hydroxyl group. 6. a strong acid because if fully ionizes in solution. 7. amphoteric because it creates both pro- tons and hydroxyl ions in solution. 002 (part 1 of 1) 10 points The strength of an acid or base is a measure of 1. the strength of its attraction to water molecules. 2. how many hydroxide or hydrogen ions it contains. 3. how vigorously it reacts with the other molecules. 4. how completely it dissociates in aqueous solution. 003 (part 1 of 1) 10 points In the reversible reaction H 3 O + + NH 3 * ) H 2 O + NH + 4 , what two substances act as acids in the Bronsted-Lowry sense? 1. H 3 O + and NH + 4 2. NH 3 and NH + 4 3. NH 3 and H 2 O 4. some other pair 5. H 3 O + and H 2 O 004 (part 1 of 1) 10 points The pH of a 1 10- 8 M solution of HNO 3 is 1. 6.96 2. 6 3. 8 4. 7 005 (part 1 of 1) 10 points In the series HClO, HClO 2 , HClO 3 , HClO 4 , which is the strongest acid? 1. HClO 3 2. HClO 2 3. HClO 4 4. HClO 006 (part 1 of 1) 10 points The pH of a human blood sample was mea- sured to be 7.41. What is the [OH- ] in this blood? 1. 4 . 12 10- 7 mol/L 2. 6 . 05 10- 7 mol/L 3. Cannot be determined from the informa- Wright, Jacqueline Homework 5 Due: Oct 10 2007, 11:00 pm Inst: James Holcombe 2 tion given....
View Full Document

Page1 / 6

HW 5 - Wright, Jacqueline Homework 5 Due: Oct 10 2007,...

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