Final Exam Chem 219 84 Questions With 100% Correct Answers

Charles' Law {Ans: the law that states that for a fixed amount of gas at a constant pressure, the volume of the gas increases as the temperature of the gas increases and the volume of the gas decreases as the temperature of the gas decreases}Three blocks of the same shape and size are placed in front of you. Block A has a mass of 3.0 g, block B is 5.0 g, and block C is 10.0 g. Which has the higher density? {Ans: Density is the ratio of mass to volume. Since the volume is constant between all the blocks, then the block with the highest mass will have the highest density.}Raoul's Law {Ans: a law stating that the partial pressure of a solvent over a solution, Pa, is given by the vapor pressure of the pure solvent, POa, times the mole fraction of a solvent in the solution, Xa: Pa = XaPOa}What is the strongest intermolecular force in an aqueous sodium chloride solution? {Ans: The strongest intermolecular force in an aqueous sodium chloride solution is ion-dipole. The oxygen of water is partially negative and attracted to the positively charged sodium ions. The hydrogen atoms of