What is the Van't Hoff factor of CuCl 2?   A. 1   B. 2   C. 3   D. 4   E.

If a certain mass of an ionic solute is added to a solvent such as water, which of the following boiling points is reasonable for the solution? Assume standard pressure. A. 75 degrees B. 27 degrees C. -13 degrees D. 115 degrees

1. Discuss the three main intermolecular forces described in chapter 11 using relevant examples. 2. List the following substances: Ar, Cl2, CH4 and CH3COOH in order of their increasing strength of intermolecular attractions. Give reason for your answer. 3a. Which intermolecular force is present in Water? Explain the reason for your answer. b. Some of the remarkable consequences  of the intermolecular force present in water can be used to explain the  "Expansion of water upon freezing", which explains why icebergs float in water and why water pipes burst in freezing temperatures.   Question: Using the concept of the intermolecular force present in water: Discuss why water expands upon freezing.  4."CH3OH boils at 65*C, while CH3SH boils at 6*C" . Which intermolecular force accounts for this difference? Explain. Respond to one student's post.

-5 mole protein is dissolved in 31.2 mL of water at 28°C. What is the osmotic pressure of the A 5.23 X 10 solution? (R=0.0821 L atm/(K mol)) O a. 0.0421 atm O b. 1.71 atm O c. 0.041 atm d. 23.7 atm O e. 0.00382 atm