Test%20#1%20B%20%28blue%29%20answers

Test%20#1%20B%20%28blue%29%20answers - 1. If a compound has...

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1. If a compound has a vapor pressure of 315 mm Hg at 42 C, which one of the following sets of data is TRUE? a. The vapor pressure decreases at 53 C and ΔH vap is negative. b. The vapor pressure increases at 53 C and ΔH vap is negative. c. The vapor pressure decreases at 53 C and ΔH vap is positive. d. The vapor pressure increases at 53 C and ΔH vap is positive. 2. Which of the following solutions would have the highest vapor pressure at 50 C? a. 5 M glycerol in water b. 5 M NaCl in water c. Pure water d. 5 M sucrose in water 3. Which of the following is an example of the Tyndall effect? a. Addition of a seed crystal to a supersaturated solution b. Light scattered from dust particles in the air c. The dissociation of an ionic compound in water d. Erratic movement of particles in solution 4. The decay rate or activity of a radioactive isotope is proportional to which of the following? a. Half-life of the isotope b. The mass of the isotope c. The charge of the isotope d. The number of radioactive nuclei present
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5. In a solution of KI (potassium iodide) and water what is the strongest intermolecular
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Test%20#1%20B%20%28blue%29%20answers - 1. If a compound has...

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