2 Which of the following statements about solution formation is FALSE Energy

# 2 which of the following statements about solution

• 5

This preview shows page 1 - 3 out of 5 pages.

these bonds are evenly distributed and cancel out. 2. Which of the following statements about solution formation is FALSE? Energy must be consumed to disrupt solute-solute interactions during solution formation Nonpolar solutes tend to dissolve in nonpolar solvents Energy is absorbed when solute-solvent interactions form during solution formation: False Polar solutes tend to dissolve in polar solvents In the dissolution process, intermolecular forces form between solute and solvent particles 0 0 0 0 0
Jenele McLean 2 3. The solubility of a certain gas in water is 1.73 x 10 -4 M when the pressure is 1.13 atm. At the same temperature, what pressure of this gas (in atm) will give a concentration in water of 5.84 x 10 -4 ? S1P1=S2P2 , where S1, P1 - the solubility of the gas at a pressure P1 S2, P2 - the solubility of the gas a pressure P2 P2=S2/S1 P1 S1= 1.73 x 10 -4 M S2= 5.84 x 10 -4 P1= 1.13atm P2=?? P2=S2/S1 P1 (5.84 x 10 -4 ) ÷ (1.73 x 10 -4 M) X 1.13atm = 3.815 atm P2=3.815atm 4. What is the molality of a solution with 94.3 g of glucose (molar mass 180.16 g/mol) in 413 g of water? Molality=Number of moles of solute per 1 kg of solvent=n/m n-number of moles of solute 94.3/180.16=0.5234 mole m=mass of solvent in kg=413/1000=0.413 kg Therefore, molality=n/m=0.5234/0.413=1.27 molality Molality= 1.27M 5. A solution is made by dissolving 8.450 mol of non-volatile solute into 34.15 mol of solvent. If the vapor pressure of the pure solvent at room temperature is 48.60 torr, what

#### You've reached the end of your free preview.

Want to read all 5 pages?

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern