Name:
Block:
pH Homework Sheet
1. The hydronium ion concentration in a solution is 3.16 x 10-3 mol/L. What is [OH-]? What is pH?
2. The pH of vinegar is 2.9. Calculate the concentrations of H3O+ and OH-.
3. The [OH-] of a fruit juice is 3.2 x 10-11 M. What is the pH?
4. Determine the pH of the following solutions:
a. 0.01 M HCl
b. 0.0010 M NaOH
c. 0.050 M Ca(OH)2
d. 0.030 M HBr
e. 0.150 M KOH
f.
2.5 M H2SO4
5. If 5.3 g of the strong base NaOH is dissolved in water to form 1500 mL of solution, what is the pH, [H3O+], and
[OH-]?
6. What amount in moles of a strong acid such as HBr must be dissolved in 3.00 L of water to prepare a solution
whose pH is 2.00?