A 0.1 M solution of benzoic acid (HC7H5O) has a pH of 2.60.

1

• A 0.1 M solution of benzoic acid (HC7H5O) has a
  pH of 2.60.
• What is the pH of a 0.05 M sodium benzoate
  (NaC7H5O)
• solution?
• 8.45
• 5.55
• 2.60
• 11.4

2

• Ka for acetic acid (HC2H3O2) is 1.8 x 10-5. What
  is the
• concentration of acetic acid in a solution with a
  pH of 3?
• 0.001 M
• 5.55 M
• 0.055 M
• 1.8 x 10-11 M

3

• Arrange the following salts in order of
  increasing acidity
• Al(NO3)3, NaC2H3O2, KBr.
• KBr, Al(NO3)3, NaC2H3O2
• Al(NO3)3, NaC2H3O2, KBr
• Al(NO3)3, KBr, NaC2H3O2
• NaC2H3O2, KBr, Al(NO3)3