Solutions

Question 1

Solvation is _____ when the new interactions formed are stronger than the old interactions

Answer 1

Exothermic

Question 2

Solvation is _____ when the new interactions formed weaker than the old interactions

Answer 2

Endothermic

Question 3

Endothermic solvation is favored at ____ temperatures while exothermic solvation is favored at ____ temperatures

Answer 3

High

Low

Question 4

____ refers to the number of configurations available to a molecule

Answer 4

Microstates

Question 5

All Group ___ salts and _____ metal salts are soluble

Answer 5

Group 1 and alkali metal

Question 6

The equation for mole fraction

Answer 6

X= mol A/total moles

Question 7

Molarity equation

Answer 7

M= moles solute/liters sol’n

Question 8

Molality equation:

Answer 8

m= moles solute/kg solvent

Question 9

1 Equivalent is equal to _____

Answer 9

1 mole of the compound of interest

Question 10

____ is the number of equivalents of interest in a solution

Answer 10

Normality

Question 11

The saturation point is an equilibrium point where the rates of ___ and ___ are equal

Answer 11

Dissolution and precipitation

Question 12

When IP < Ksp the solution is ______

Answer 12

Unsaturated (dissolution will continue)

Question 13

When IP>Ksp the solution is ____

Answer 13

Saturated (precipitation will occur)

Question 14

When IP=Ksp the solution is ___

Answer 14

At equilibrium

Question 15

The solubility of gases is affected by ___, ___ and ____

Answer 15

Temperature, solvent and pressure

Question 16

This law says that as the amount of solute added increases, the vapor pressure of the solvent decreases

Answer 16

Raoult’s Law

The solute molecules prevent the solvent from evaporating

Question 17

The equation for boiling point elevation

Answer 17

BP= imKb

Question 18

The equation for freezing point depression

Answer 18

FP= imKf

Question 19

The equation for osmotic pressure

Answer 19

Osmotic pressure= iMRT

uses molarity instead of molality, like the other equations

Question 20

The ______ effect describes how there will be a reduction in solubility if the solvent already contains an ion that is also present in the solute

Answer 20

Common ion