Acids & Bases - Calculations

Which of the following conditions represents a neutral solution at 25 degrees Celsius?

• [OH^-] = 1.0 x 10^-7 M

• [H⁺] = 1.0 x 10^-7 M

• K_w = [H⁺][OH^-] = 1.0 x 10^-14 M

• All of the answer choices!

Which substance could not be classified as an Arrhenius acid?

• HBr

• HCl

• H₂SO₄

• NaCl

Use the Common Acids & Bases table in your notes for this question: Which acid would be considered a weak electrolyte?

• hydrochloric acid

• potassium hydroxide

• dihydrogen monoxide

• carbonic acid

Which statement is true about Bronste-Lowery acids?

• Arrhenius acids are also Bronsted-Lowery acids.

• Bronsted-Lowery acids are hydrogen ion acceptors.

• A Bronsted-Lowery acid will form a conjugate acid after losing a hydrogen ion.

• Bronsted-Lowery acids contain hydroxide ions.

Sulfuric acid reacts with lithium hydroxide to produce a salt and water. What is the correct name and formula of the salt that is produced? *Salt = Cation from the base + Anion from the acid

• Lithium Sulfuric; LiSO₄

• Lithium Sulfate; Li₂SO₄

• Lithium Sulfate; Li(SO₄)₂

Zachary prepared an aqueous solution with a [H⁺] = 8.03 x 10^-9 M. Is his solution acidic, basic, or neutral?

• acidic

• basic

• neutral

Which substance can be classified as an Arrhenius base?

• Mg(OH)₂

• CH₃COOH

• NH₃

The pH of a solution is 4.91. What is the pOH of the solution?

• 18.91

• 1.2 x 10^-5

• 9.09

Zarinah made a buffer solution with a pH 8.31. What is the hydroxide ion concentration, [OH^-], of her solution?

• 5.0 x 10^-9 M

• 1.0 x 10^-5 M

• 2.0 x 10^-6 M

Use the table of Common Acids & Bases in your notes to answer this question: Which list of acids is arranged in order of decreasing strength?

• H₃PO₄, H₂SO₄, HNO₃

• HC₂H₃O₂, H₂CO₃, HClO

• HClO, HCl, HC₂H₃O₂