23.
A)Calculate the pH of a 0.475 M aqueous
solution of hypochlorous acid
(HClO, Ka =
3.5×10-8).
pH =
B)Calculate the pH of a 0.0354 M aqueous
solution of hydrofluoric acid
(HF, Ka =
7.2×10-4).
pH =
- A 0.171 M weak acid solution has a pH of 4.34. Find Ka for the
acid.
- Find the percent ionization of a 0.230 M HC2H3O2
solution. (The value of Ka for HC2H3O2 is 1.8×10−5.)
- Find the pH of a 0.0221 M solution of hypochlorous
acid. (The value of Ka for hypochlorous acid is
2.9×10−8.)
- Find the pH of a 0.012 M solution of HNO2. (The value
of Ka for HNO2 is 4.6×10−4.)
- Find the...
Determine the percent ionization of a 0.014 M solution of
hypochlorous acid, HClO. The Ka for the acid is 3.5x10^–8.
A) 3.5x10 ^–6 %
B) 4.9x10^–9 %
C) 7.0 x 10^–3 %
D) 5.0 x10^–2 %
E) 1.58x 10^–1 %
Determine the pH during the titration of 65.9
mL of 0.410 M hypochlorous acid
(Ka = 3.5×10-8) by
0.410 M NaOHat the following
points.
(a) Before the addition of any NaOH-?
(b) After the addition of 16.0 mL of
NaOH-?
(c) At the half-equivalence point (the titration midpoint) -?
(d) At the equivalence point -?
(e) After the addition of 98.9 mL of
NaOH-?
Determine the pH during the titration of 66.6
mL of 0.468 M hypochlorous acid
(Ka = 3.5×10-8) by
0.468 M NaOH at the following
points. (Assume the titration is done at 25 °C.)
(a) Before the addition of any NaOH ?
(b) After the addition of 16.0 mL of
NaOH ?
(c) At the half-equivalence point (the titration midpoint) ?
(d) At the equivalence point ?
(e) After the addition of 99.9 mL of
NaOH ?
Part A) A 0.184 M weak acid solution has a pH of 3.26. Find Ka
for the acid.
Part B)Find the percent ionization of a 0.204 M HClO
solution. (The value of Ka for HClO is 2.9×10−8.)