Practice Exam #1

Practice Exam #1 - Hunter College City University of New...

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

View Full Document Right Arrow Icon
1 Hunter College City University of New York Chem. 104 Exam I practice (Chapters 10, 11 &12) Summer 2010 Multiple Choice 1. What best describes the type of intermolecular forces would you expect to find in a sample of CBr 4 ? a. H-bonding b. dipole-dipole c. ionic d. london dispersion 2. What is the molality of a solution containing 15.0 g of CaI 2 in 500 g water? a. 0.102 m b. 0.306 m c. 0.000102 m d. 0.42 m 3. Which of the following substances has the biggest dispersion forces? a. Kr b. Cl 2 c. Ne d. O 2 4. If you have a solution of 40% by mass sulfuric acid with a density of 1.230g/ml. What is the molality of sulfuric acid in this solution? a. 0.66 m b. 667 m c. 0.0068 m d. 6.80 m 5. Consider the following pressure diagram for a binary liquid containing A and B. If 960 g of A (60 g/mol) and 1430 g of B (130 g/mol) are mixed, what is the vapor pressure of B? a. 23 torr b. 40 torr c. 32 torr d. 56 torr
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 6. Glycerol (a non-electrolyte that can be used as antifreeze in a car radiator) has a density of 1.261 g/mL and a molecular weight of 92 g. If 100 mL are mixed with 1 kg of water, what is a good estimate of the temperature at which this solution will freeze? (Kf water = 1.861 C/m.) a. -12. 4 C b. - 4.8 C c. 0.00 C d. -2. 6 C 7. During kinetics experiment, the following plot is obtained. What information can be gained from the graph? a. Order of reaction b. Activation Energy c. Rate constant d. Presence of catalyst 8. The mechanism bellow is proposed; which are the intermediates in the proposed mechanism? Step 1:
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 10/27/2010 for the course CHEM 104 taught by Professor Quigley during the Summer '08 term at CUNY Hunter.

Page1 / 6

Practice Exam #1 - Hunter College City University of New...

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