Chapter 11 and 13 Additional Problems

Chapter 11 and 13 Additional Problems - Chapter 11 and 13...

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

View Full Document Right Arrow Icon
Chapter 11 and 13 Additional Problems 1. What intermolecular forces are in play in the following? A. C 2 H 5 OH ____________________________________ B. KBr in H 2 O ____________________________________ C. HI ____________________________________ D. Xe atom ____________________________________ 2. What is the enthalpy change of ethanol(C 2 H 5 OH) from -150 o C to 77 o C. Ethanol melts at -114 o C and boils at 78 o C. The enthalpy of fusion is 5.02 kJ/mol and the enthalpy of vaporization is 38.56 kJ/mol. The specific heat of solid ethanol is 0.97 J/g K and liquid ethanol is 2.31 J/g K. The sample is 75 grams. _______________________ 3. What is the concentration of a gas that has a Henry’s Law constant of 4.5 x 10 -2 mol/L atm, and a pressure of 888 torrs?
Background image of page 1

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

View Full DocumentRight Arrow Icon
_______________________ 4. A solution that consists of KBr and water has a mass of 78 g of KBr and 155 g of water. (a) What is the mass percent of KBr? (b) What is the mass percent of water? (c) What is the mole fraction of water? (d) What is the ppm of a solution of 0.78 g of KBr
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 01/30/2011 for the course CHEM 1265 taught by Professor Deeter,g during the Spring '09 term at Tulsa Community College.

Page1 / 4

Chapter 11 and 13 Additional Problems - Chapter 11 and 13...

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