Acid-Base Practice Problems

The table shows the pH of several solutions. Which solution has the greatest concentration (amount) of H⁺ ions?

• vinegar

• milk

• water

• bleach

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

What is the [H⁺] if the pH is 4.0?

• 1.0 x 10^-10 M

• 1.0 x 10^-4 M

• 1.0 x 10^-14 M

• 1.0 x 10^-7 M

What is the pOH of a solution that has a pH of 2?

• 10
• 12
• 14
• 1

Which type of salt the following salt are classiffied as ?

"NH₄Br"

• neutral salt

• acidic salt

• basic salt

What is the concentration of citric acid if its volume is 25 ml and the titrated volume of the standard solution of 0.75 M is 12.4 ml

• 0.47

• 0.37

• 0.30

• 0.17

The concentration of the 30ml of citric acid solution is determined to be 1.23 M. Using the titration equation, predict the titration volume for the standard solution of 2.3 M.

• 14 ml

• 15 ml

• 16 ml

• 17 ml

The following mixture of solutions that form a buffer solution is . . .

• 50 mL CH₃COOH 0.2 M and 50 mL NaOH 0.1 M

• 50 mL CH₃COOH 0.2 M and 100 mL NaOH 0.1 M

• 50 mL HCl 0.2 M and 100 mL NH₄OH 0.1 M

• 50 mL HCl 0.2 M and 50 mL NH₄OH 0.1 M

• 50 mL HCl 0.2 M and 100 mL NaOH 0.1 M

The pH solution that consist of NH₄OH 0.2 M and (NH₄)₂SO₄ 0.1 M with Kb NH₄OH = 10^-5 is . . .

• 5 – log 2

• 5

• 7

• 9

• 9 + log 2

The pH solution that consist of CH₃COOH 0.01 M and CH₃COONa 0.01 M with Ka = 10^-5 is . . .

• 4

• 5

• 6

• 8

• 9