Acids and Bases - Buffer Solutions

Question 1

buffer solutions

Answer 1

• mixtures
• • weak acid and conjugate base
• • weak base and conjugate acid
• prepared by mixing a weak acid or weak base with a salt of that acid or base
• CH3COOH ->

Question 2

A buffer solution is prepared by adding NH4Cl, ammonium chloride, to a solution of NH3 ammonia acid
NH3(aq) = H2O(L) NH4+(aq) + OH-(aq)
what happens if Ca(NO3)2 is added?

Answer 2

• remains the same

Question 3

A buffer solution is prepared by adding NH4Cl, ammonium chloride, to a solution of NH3 ammonia acid
NH3(aq) = H2O(L) NH4+(aq) + OH-(aq)
what happens if NaOH is added?

Answer 3

• shifts to reactants

Question 4

a buffer solution is prepared by adding NaH2PO4 to a solution of H3PO4 phosphoric acid
H3PO4(aq) H+(aq) + H2PO4-(aq)
what happens if HCl is added/

Answer 4

• shifts to reactants

Question 5

a buffer solution is prepared by adding NaC2H3O2 to a solution of HC2H3O2 acetic acid
HC2H3O2(aq) H+(aq) + C2H3O2-(aq)
what happens if NaOH is added?

Answer 5

• shifts to products