The only way to do this, I think, is to calculate, on an individual basis, the pH of each of the solutions. To do that you need to recognize which are strong or weak acids, which are strong or weak bases and which are salts (and the kind of salt of each). I shall be glad to help you through this process but I don't intend to work 13 problems.
Acids:
HCl strong
HCN weak
H2SO4 1st H is strong; second is weak.
H2SO3 weak
CH3COOH weak
bases:
NaOH strong
NH3 weak
salts: (they hydrolyze)
CH3COONa CH3COO^- is a base
NaCN CN^- is a base
KNO3 neither ion is hydrolyzed
NH4Cl NH4^+ is an acid.
NaHCO3 HCO3^- is a base.
Na3PO4 PO4^-3 is a base.
Arrange the following 0.1 M solutions in order of increasing pH and state why you placed each
solution in that position:
NaCH3COO
HCl
HCN
NaOH
NH3
NaCN
KNO3
H2SO4
NH4CL
H2SO3
NaHCO3
Na3PO4
CH3COOH
1 answer