A) the pH of a 0.150 M solution of a weak monoprotic acid having Ka= 1.2×10−3 is 1.89.
Find the percent dissociation of this solution.
B) Find the pH of a 0.150 M solution of a weak monoprotic acid having Ka= 0.13.
Find the percent dissociation of this solution.
A)
The percentage dissociation
B)
Let us represent weak acid as HA
Let x M HA dissociate to reach equilibrium
Initial concentration (M) | 0.150 | 0 | 0 |
Change in concentration (M) | -x | +x | +x |
Equilibrium concentration (M) | 0.150-x | x | x |
The acid dissociation constant
This is quadratic equation of type with solution
or
Negative value of x is discarded as concentration cannot be negative.
Hence,
The percentage dissociation
A) the pH of a 0.150 M solution of a weak monoprotic acid having Ka= 1.2×10−3...
A) Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 1.5×10−5. B) Find the percent dissociation of this solution. C) Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 2.0×10−3. D) Find the percent dissociation of this solution. E) Find the pH of a 0.120 M solution of a weak monoprotic acid having Ka= 0.14. F ) Find the percent dissociation of this solution.
a.) Find the pH of a 0.130 M solution of a weak monoprotic acid having Ka= 1.0×10−3. b.) Find the percent dissociation of this solution c.) Find the pH of a 0.130 M solution of a weak monoprotic acid having Ka= 0.11. d.) Find the percent dissociation of this solution.
Find the pH of a 0.100 M solution of a weak monoprotic acid having Ka= 1.2×10−3. Express your answer to two decimal places.
Part C Find the pH of a 0.140 M solution of a weak monoprotic acid having Ka= 1.9×10−3. Part D Find the percent ionization of a 0.140 M solution of a weak monoprotic acid having KKa= 1.9×10−3.
Find the pH of a 0.130 M solution of a weak monoprotic acid having Ka= 1.1×10−3. Express your answer to two decimal places.
Part E Find the pH of a 0.140 M solution of a weak monoprotic acid having Ka= 0.12. Part F Find the percent ionization of a 0.140 M solution of a weak monoprotic acid having Ka= 0.12.
Find the pH and percent ionization of a 0.100 M solution of a weak monoprotic acid having the given Ka values. (a) Ka = 1.9 10-5 (b) Ka = 1.9 10-3 (c) Ka = 1.9 10-1
Part A A 0.150 M weak acid solution has a pH of 2.97. Find Ka for the acid. Part B Find the percent ionization of a 0.195 M HC2H3O2 solution. (The value of Ka for HC2H3O2 is 1.8×10−5.) Part C Find the pH of a 0.0191 M solution of hypochlorous acid. (The value of Ka for hypochlorous acid is 2.9×10−8.) Part D Find the pH of a 0.014 M solution of HF. (The value of Ka for HF is 3.5×10−4.) Part...
The pH of a 4.39×10-3 M solution of a weak monoprotic acid is 4.40. Calculate Ka for this monoprotic acid to three significant figures.
1.) The Ka of a monoprotic weak acid is 7.93 x 10^-3. What is the percent ionization of a 0.170 M solution of this acid? 2.) Enough of a monoprotic acid is dissolved in water to produce a 0.0141 M solution. The pH of the resulting solution is 2.50. Calculate the Ka for the acid.