Question & Answer: PCl_5 has ____ electron domains and a ____ molecular arrangement. A) 6, trigonal…..

PCl_5 has ____ electron domains and a ____ molecular arrangement. A) 6, trigonal bipyramidal B) 6, tetrahedral C) 5, trigonal bipyramidal D) 6, seesaw E) 5, square pyramidal Of the following molecules, only ____ is polar. A) BCl_3 B) NCl_3 C) BeCl_2 D) Cl_2 E)CCl_4 The hybridization of the oxygen atom labeled y in the structure below is ___. The C-O-H bond angle is ____. A) sp, 180 degree B) sp, 90 degree C) sp^3d^2, 90 degree D) sp^2, 1095 degree E) sp^3, 109.5 degree A molecular orbital can accommodate a maximum of ____ electron(s). A) 1 B) 2 C) 4 D) 6 E) 12 Of the following ____ is a valid statement of Charles’ law. A) V = constant P B) V/T = constant C) V = constant n D) P/T = constant E) PV = constant Standard temperature and pressure (STP), in the context of gases, refers to ____. A) 273.15 K and 1 pascal B) 298.15 K and 1 atm C) 273.15 K and 1 torr D) 273.15 K and 1 atm E) 298.15 K 1 torr A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is ____ atm. A) 0.67 B) 1.5 C) 15 D) 7.5 E) 3.3 A pressure of 0.500 atm is the same as a pressure of ____ of mm Hg. A) 29.9 B) 193 C) 33.0 D) 760. E) 380.