Unit 11 Pretest Acid and Base

Which of the following is the correct formula for carbonic acid?

• HCO₃

• HCO

• HCO₂

• H₂CO₃

Which of the following is the correct formula for acetic acid?

• HC₂H₃O₂

• HC₃H₃O₃

• H₂C₃H₂O₃

• H₃As

Which best represents the subscripts on the correct formula for phosphoric acid, H₁₂₃₄P₁₂₃₄O₁₂₃₄?

• 2 1 4

• 3 1 4

• 313

Which of the following is the correct formula for the base calcium hydroxide?

• Ca(OH)₂

• Ca₂OH

• Ca(OH)₃

• CaOH

Which of the following is paired CORRECTLY?

• hydrochloric acid, HClO₄

• Nitric acid, H₂SO₄

• Sulfuric acid, H₂SO₄

• Perchloric acid, HNO₃

Which of the following is correct about the naming of acids?

• The prefix “hydro-” is used when the acid contains oxygen.

• The suffix “-ous” is used when the anion ends in “-ate”.

• The suffix “-ic” is used when the anion ends in “-ate”.

• All acids have the prefix “hydro-”.

A titration of 30.0 mL of H₂SO₄ is completed after adding 15.0 mL of 0.200 M KOH. What is the concentration of the sulfuric acid?

• 0.10 M

• 0.20 M

• 0.30 M

• 0.40 M

What is the molarity of 65 mL of lithium hydroxide, LiOH, if 95 mL of 0.50 M hydrosulfuric acid, H₂S, neutralizes it?

• 1.46 M

• 0.731 M

• 0.684 M

• 0.342 M

Which of the following describes a weak electrolyte?

• A solution where the solute completely dissociates.

• A solution where the solute does not dissociate at all.

• A solution where the solute partially dissociates.

• A solute that dissolves but does not dissociate.

Which of the following is a Brønsted–Lowry acid?

• OH⁻

• H₂O

• NH₃

• HCl