Answer the following showing all work, equations, units, etc. **Be sure to show the chemical reaction for each problem (if available).**

1. What is the sulfuric acid, H_{2}SO_{4}, concentration of a solution with pH = 3.42.

2. What is the calcium hydroxide concentration of a solution with a pOH = 4.35?

3. What is the sulfuric acid concentration of a solution with a pH of 1.2?

4. What is the barium hydroxide concentration of a solution with a pOH of a 6.24?

Answer: 1) 1.9E-4M 2) 2.2E-5M 3) 3E-2M 4) 2.9E-7M