Another Practice Final Quiz on Acids & Bases 2026

When the hydrogen ion concentration goes up, the pH ___

• gets lower

• goes away from zero

• gets higher

• goes toward 7

Which formula is most helpful to go from pH to pOH

• [OH^-1] = 10^-pOH

• pOH=-log[OH-]

• [H+] = 10^-pH

• pH+pOH=14

If a solution has a [H⁺] of 9.3x10^-11, what is the approximate pH?

• 10

• 4

• 3

• 8

Determine the [H+] of a solution with pH 3.2

• 2.1 x 10^-2

• .06 x 10^-4

• 6.3 x 10^-4

• 6.3 x 10^-3

If a solution has a [OH^-] of 2.3x10^-4, it must be a(n)...

• Acid

• Base

• Neutral

• cannot be determined from information given

If the pH of a solution is 5.6 the pOH is

• 6.5
• 12.4
• 8.4
• 5.6

Ammonia has a pOH of 2. Ammonia is a(n) __________.

• acid

• base

• neutral

• metal

What is the definition of an acid?

• a compound that releases hydrogen ions into a solution

• any substance that in water is slippery to the touch and tastes bitter

• a compound that accepts H+ ions in solution

• any pH 7.1-14

Which of the following is a property of an acid?

• pH > 7
• turns litmus paper blue
• tart or sour taste
• corrosive to organic materials

Which of the following is the formula for sulfuric acid

• HSO₃
• H₂SO₃
• H₂SO₄

• H₃SO₄