# HW 2 - Wright Jacqueline – Homework 2 – Due 11:00 am...

This preview shows pages 1–3. 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: Wright, Jacqueline – Homework 2 – Due: Sep 18 2007, 11:00 am – Inst: James Holcombe 1 This print-out should have 25 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 The temperature at which water boils can be increased by adding some solute, like ethylene glycol. This is known as a colligative property. 1. True 2. False 002 (part 1 of 1) 10 points The colligative effects of 1 molal sugar solu- tion would be ? 1 molal sodium chloride solution. 1. the same as 2. greater than 3. less than 003 (part 1 of 1) 10 points The vapor pressure of a volatile component in a solution decreases as its mole fraction decreases. This is known as 1. LeChatelier’s Principle. 2. Henry’s Law. 3. Raoult’s Law. 4. Bragg’s Law. 004 (part 1 of 3) 10 points Consider the following pressure diagram for a binary liquid containing A and B. 1 x A 100 torr 60 torr If 4465 g of A (235 g / mol) and 2200 g of B (110 g / mol) are mixed, what is the vapor pressure of B? 1. 60 torr 2. 29 torr 3. 51 torr 4. 100 torr 5. 80 torr 005 (part 2 of 3) 10 points What is the corresponding vapor pressure of A? 1. 29 torr 2. 80 torr 3. 60 torr 4. 100 torr 5. 51 torr 006 (part 3 of 3) 10 points What is the corresponding total vapor pres- sure? 1. 60 torr 2. 29 torr 3. 80 torr Wright, Jacqueline – Homework 2 – Due: Sep 18 2007, 11:00 am – Inst: James Holcombe 2 4. 100 torr 5. 51 torr 007 (part 1 of 1) 10 points 1,1-Dichloroethane (CH 3 CHCl 2 ) has a va- por pressure of 228 Torr at 25 ◦ C; at the same temperature, 1,1-dichlorotetrafluoroethane (CF 3 CCl 2 F) has a vapor pressure of 79 Torr....
View Full Document

{[ snackBarMessage ]}

### Page1 / 4

HW 2 - Wright Jacqueline – Homework 2 – Due 11:00 am...

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

View Full Document
Ask a homework question - tutors are online