The temperature of 2.00 mol ne(g) is increased from 25°c to 200°c at constant pressure. assuming the heat capacity of ne is 20.8 j/k·mol, calculate the change in the entropy of neon. assume ideal gas behavior. a.+19.2 j/kb.-7.68 j/kc.+7.68 j/kd.-19.2 j/k

A0.10 m aqueous solution of sodium sulfate is a better conductor of electricity than a 0.10 m aqueous solution of sodium chloride. which of the following best explains this observation? (a) sodium sulfate is more soluble in water than sodium chloride. (b) sodium sulfate has a higher molar mass than sodium chloride. (c) to prepare a given volume of 0.10 m solution, the mass of sodium sulfate needed is more than twice the mass of sodium chloride needed. (d) more moles of ions are present in a given volume of 0.10 m sodium sulfate than in the same volume of 0.10 m sodium chloride. (e) the degree of dissociation of sodium sulfate in solution is significantly greater than that of sodium chloride.