2024 Chem 2 MidTerm Exam Review
mass percent formula - CORRECT ANSWER ✔✔✔ (mass solute/mass solution) X 100
What's a solution made of? - CORRECT ANSWER ✔✔✔ solute + solvent
Molarity formula - CORRECT ANSWER ✔✔✔ mol solute / L solution
What must you have to increase the dissolving of a gas in a liquid? - CORRECT ANSWER ✔✔✔ Increase
pressure and decrease temperature
Dilution formula - CORRECT ANSWER ✔✔✔ M1V1 = M2V2
Conjugate acid - CORRECT ANSWER ✔✔✔ the particle formed when a base gains a hydrogen ion
Conjugate base - CORRECT ANSWER ✔✔✔ the particle that remains when an acid has donated a
hydrogen ion
Diatomic Elements - CORRECT ANSWER ✔✔✔ Br, I, N, Cl, H, O, F
Conjugate acid base pairs - CORRECT ANSWER ✔✔✔ compounds or ions that differ by one proton (H+)
pH formula - CORRECT ANSWER ✔✔✔ = -log[H+]
Hydronium concentration - CORRECT ANSWER ✔✔✔ 10^-pH
pH + pOH = - CORRECT ANSWER ✔✔✔ 14
Acidic solution - CORRECT ANSWER ✔✔✔ [H3O+] > [OH-] or when pH < 7
Basic solution - CORRECT ANSWER ✔✔✔ [H3O+] < [OH-] or when pH > 7
Neutral solution - CORRECT ANSWER ✔✔✔ [H3O+] = [OH-] or when pH = 7
Equilibrium expression - CORRECT ANSWER ✔✔✔ concentration of products/concentration of
reactants
Exclusion in equilibrium expression - CORRECT ANSWER ✔✔✔ Solids and liquids
Increase in Pressure effect on equilibrium - CORRECT ANSWER ✔✔✔ Shift to side with fewer gas moles
Heat removal effect on equilibrium - CORRECT ANSWER ✔✔✔ Shift to side with heat in reaction
Endothermic reaction - CORRECT ANSWER ✔✔✔ Positive ΔH indicates heat absorbed or heat is a
reactant
Oxidation numbers/states - CORRECT ANSWER ✔✔✔ Also known as charges in compounds
Charge of N in NO3-1 - CORRECT ANSWER ✔✔✔ +5
Oxidizing agent - CORRECT ANSWER ✔✔✔ Accepts electrons and becomes reduced.
Half-life definition - CORRECT ANSWER ✔✔✔ Time for half substance to decay.
heat addition effect on equilibrium - CORRECT ANSWER ✔✔✔ shift to side without heat in reaction
mass percent formula - CORRECT ANSWER ✔✔✔ (mass solute/mass solution) X 100
What's a solution made of? - CORRECT ANSWER ✔✔✔ solute + solvent
Molarity formula - CORRECT ANSWER ✔✔✔ mol solute / L solution
What must you have to increase the dissolving of a gas in a liquid? - CORRECT ANSWER ✔✔✔ Increase
pressure and decrease temperature
Dilution formula - CORRECT ANSWER ✔✔✔ M1V1 = M2V2
Conjugate acid - CORRECT ANSWER ✔✔✔ the particle formed when a base gains a hydrogen ion
Conjugate base - CORRECT ANSWER ✔✔✔ the particle that remains when an acid has donated a
hydrogen ion
Diatomic Elements - CORRECT ANSWER ✔✔✔ Br, I, N, Cl, H, O, F
Conjugate acid base pairs - CORRECT ANSWER ✔✔✔ compounds or ions that differ by one proton (H+)
pH formula - CORRECT ANSWER ✔✔✔ = -log[H+]
Hydronium concentration - CORRECT ANSWER ✔✔✔ 10^-pH
pH + pOH = - CORRECT ANSWER ✔✔✔ 14
Acidic solution - CORRECT ANSWER ✔✔✔ [H3O+] > [OH-] or when pH < 7
Basic solution - CORRECT ANSWER ✔✔✔ [H3O+] < [OH-] or when pH > 7
Neutral solution - CORRECT ANSWER ✔✔✔ [H3O+] = [OH-] or when pH = 7
Equilibrium expression - CORRECT ANSWER ✔✔✔ concentration of products/concentration of
reactants
Exclusion in equilibrium expression - CORRECT ANSWER ✔✔✔ Solids and liquids
Increase in Pressure effect on equilibrium - CORRECT ANSWER ✔✔✔ Shift to side with fewer gas moles
Heat removal effect on equilibrium - CORRECT ANSWER ✔✔✔ Shift to side with heat in reaction
Endothermic reaction - CORRECT ANSWER ✔✔✔ Positive ΔH indicates heat absorbed or heat is a
reactant
Oxidation numbers/states - CORRECT ANSWER ✔✔✔ Also known as charges in compounds
Charge of N in NO3-1 - CORRECT ANSWER ✔✔✔ +5
Oxidizing agent - CORRECT ANSWER ✔✔✔ Accepts electrons and becomes reduced.
Half-life definition - CORRECT ANSWER ✔✔✔ Time for half substance to decay.
heat addition effect on equilibrium - CORRECT ANSWER ✔✔✔ shift to side without heat in reaction
