Chemistry 2 Final Exam Questions
and Already Solved Solutions 2026-
2027 Updated.
The solubility of most solids in water _______ with increasing temperature - Answer
increases
The solubility if gases in liquids _______ with increasing temperature - Answer decreases
The higher the pressure of gas above a liquid the _____ soluble the gas is in that liquid - Answer
more
Things to remember about the solubility of metals, ionic solids and molecular solids - Answer
metals don't dissolve in water, ionic solids require solubility rules and molecular solids are
dissolved in like solutions
Nonvolatile means? - Answer A substance is not easily vaporized
Electrolyte means? - Answer A substance that dissolves in water to form solutions that
conduct electricity
Entropy (S) means? - Answer The tendency to mix is related to entropy which is the measure
of energy randomization or energy dispersal in a system.
4 main types of intermolecular forces? - Answer Dispersion, Dipole dipole, Hydrogen bonding
and Ion dipole.
A greater entropy means... - Answer more mixing, more disorder
Miscible means? - Answer two substances are soluble to each other in all proportions
The more non-polar regions a molecule contains, the _____ it wants to dissolve in water -
Answer less
Hess's Law - Answer the overall enthalpy change upon solution formation is the sum of the
changes in enthalpy for each step
, Enthalpy (H) means? - Answer The energy associated with the breaking and forming of bonds
in a chemical reaction.
An endothermic reaction has a negative or positive delta H? - Answer positive delta H
An exothermic reaction has a negative or positive delta H? - Answer negative delta H
Henry's Law (She Kant Play) - Answer the solubility of gases with increasing pressure. S(gas)=
k(H)P(partial pressure gas)
Solubility must be in moles and pressure must be in atm
Molarity (M) is? - Answer The amount of solute (moles) in solution (liters)
Molality (m) is? - Answer The amount of solute (moles) in amount of solvent (kg)
Mole fraction (x) is? - Answer The amount of solute (moles) in the amount of solute (moles)
Density (d) is? - Answer Grams over milliliters
From Celcius to Kelvins - Answer K= C+ 273
atm to torr - Answer 1 atm= 760 torr
Freezing Point Depression (They might Kome frank) - Answer (Delta)T=mK(f)
Boiling Point Elevation (They might Kome bill) - Answer (Delta)T=mK(b)
Vapor Pressure of a Liquid - Answer Vapor pressure of solution= mole fraction of a solvent
times the vapor pressure of the pure solvent. P=XP(solvent pure)
Osmotic Pressure (Mary Really Tried) - Answer Osmotic pressure= MRT (R is the ideal gas
constant .08206 L*atm/ mol*K)
van't Hoff factor (i) - Answer moles of particles resulting in the solution over moles of formula
units dissolved
and Already Solved Solutions 2026-
2027 Updated.
The solubility of most solids in water _______ with increasing temperature - Answer
increases
The solubility if gases in liquids _______ with increasing temperature - Answer decreases
The higher the pressure of gas above a liquid the _____ soluble the gas is in that liquid - Answer
more
Things to remember about the solubility of metals, ionic solids and molecular solids - Answer
metals don't dissolve in water, ionic solids require solubility rules and molecular solids are
dissolved in like solutions
Nonvolatile means? - Answer A substance is not easily vaporized
Electrolyte means? - Answer A substance that dissolves in water to form solutions that
conduct electricity
Entropy (S) means? - Answer The tendency to mix is related to entropy which is the measure
of energy randomization or energy dispersal in a system.
4 main types of intermolecular forces? - Answer Dispersion, Dipole dipole, Hydrogen bonding
and Ion dipole.
A greater entropy means... - Answer more mixing, more disorder
Miscible means? - Answer two substances are soluble to each other in all proportions
The more non-polar regions a molecule contains, the _____ it wants to dissolve in water -
Answer less
Hess's Law - Answer the overall enthalpy change upon solution formation is the sum of the
changes in enthalpy for each step
, Enthalpy (H) means? - Answer The energy associated with the breaking and forming of bonds
in a chemical reaction.
An endothermic reaction has a negative or positive delta H? - Answer positive delta H
An exothermic reaction has a negative or positive delta H? - Answer negative delta H
Henry's Law (She Kant Play) - Answer the solubility of gases with increasing pressure. S(gas)=
k(H)P(partial pressure gas)
Solubility must be in moles and pressure must be in atm
Molarity (M) is? - Answer The amount of solute (moles) in solution (liters)
Molality (m) is? - Answer The amount of solute (moles) in amount of solvent (kg)
Mole fraction (x) is? - Answer The amount of solute (moles) in the amount of solute (moles)
Density (d) is? - Answer Grams over milliliters
From Celcius to Kelvins - Answer K= C+ 273
atm to torr - Answer 1 atm= 760 torr
Freezing Point Depression (They might Kome frank) - Answer (Delta)T=mK(f)
Boiling Point Elevation (They might Kome bill) - Answer (Delta)T=mK(b)
Vapor Pressure of a Liquid - Answer Vapor pressure of solution= mole fraction of a solvent
times the vapor pressure of the pure solvent. P=XP(solvent pure)
Osmotic Pressure (Mary Really Tried) - Answer Osmotic pressure= MRT (R is the ideal gas
constant .08206 L*atm/ mol*K)
van't Hoff factor (i) - Answer moles of particles resulting in the solution over moles of formula
units dissolved
