Relationships
Describe the relationship between acids, pKa, and Ka
Strong acids have smaller pKa and larger Ka
If the Ka of an acid is 1.8 * 10-5, calculate the pKa
4.745
What is the pH of a 0.060 M solution of HBr?
1.22
Label the acids weakest to strongest. (Recognize that table has BOTH pKa and Ka, so you will need to convert)
HS- < HCN < HSO4- < H2SO4
A 0.065 M solution of a monoprotic weak acid HA has a pH of 5.14. What is the Ka for the acid?
8.1 * 10-10
What is the pH of a solution of HClO4 that is 3*10-5 M of OH- ?
9.48
What is the concentration of [H3O+] and [OH-] for the following solutions:
1. neutral solutions:
2. acidic solutions:
3. basic solutions:
1. 1.0 * 10-7
2. [H3O+] > [OH-]
3. [H3O+] < [OH-]
What is the pH of a solution that is 0.050 M HF (Ka = 6.8 *10-4) and 0.050 M HCN (Ka = 4.9 * 10-10)?
2.23
Freebee
Freebee
What is the formula for % ionization?
For a solution of weak acids, when you increase the concentration of acid, what happens to % ionization?
% ionization will decrease
What percentage of a 0.750 M solution of acetic acid (Ka = 1.8 * 10-5) is ionized?
0.49%
An aqueous solution is 2*10-3 M OH- . What is the hydronium ion concentration in the solution?
5 * 10-11 M
If you have a mixture of acids, which acid should you focus on when solving for pH?
Strongest acid controls pH
Who is Taylor Swift dating?
Travis Kelce
What is the hydroxide ion concentration in a solution with a strong acid that has a pH of 5.76?
5.75 * 10-9 M