Relationships
Ka/ pKa/ % ionization
pH & pOH
100

Describe the relationship between acids, pKa, and Ka

Strong acids have smaller pKa and larger Ka

100

If the Ka of an acid is 1.8 * 10-5, calculate the pKa

4.745

100

What is the pH of a 0.060 M solution of HBr?

1.22

200

Label the acids weakest to strongest. (Recognize that table has BOTH pKa and Ka, so you will need to convert)

HS- < HCN < HSO4- < H2SO4

200

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

200

What is the pH of a solution of HClO4 that is 3*10-5 M of OH- ?

9.48

300

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-]

300

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

300

Freebee

Freebee

400

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

400

What percentage of a 0.750 M solution of acetic acid (Ka = 1.8 * 10-5) is ionized?

0.49%

400

An aqueous solution is 2*10-3 M OH- . What is the hydronium ion concentration in the solution?

5 * 10-11 M

500

If you have a mixture of acids, which acid should you focus on when solving for pH?

Strongest acid controls pH

500

Who is Taylor Swift dating? 

Travis Kelce

500

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