Acids & Bases

A sour taste is a characteristic of:

• acids

• bases

• neutral

• pH scale

pH is the measure of the concentration of ______.

• Acids

• H+ ion

• OH- ion

• Bases

According to Arrhenius, what is the definition of an ACID?

• a substance that contains hydroxide and ionizes to produce OH-

• a substance that contains hydrogen and ionizes to produce H+

• a substance that contains hydrogen and ionizes to produce OH-

• a substance that contains hydroxide and ionizes to produce H+

According to Bronsted-Lowry, what is the definition of an BASE?

• a substance that donates a hydrogen (H+) ion

• a substance that donates a hydroxide (OH-) ion

• a substance that accepts a hydrogen (H+) ion

• a substance that accepts a hydroxide (OH-) ion

What is the conjugate base in the following reaction?

• HCO₃^-

• HCl

• H₂CO₃

• Cl-

What is the conjugate acid in the following equation?

• PO₄^3- 
• HNO₃ 
• NO₃^- 
• HPO₄^2-
  

Which of the following is an Arrhenius Acid?

• LiOH

• CO₃^2-

• OH^-

• H₃PO₄

If a solution is basic which ion will be more present?

• H+
• K+
• OH-
• H-

Which of the following is a strong acid?

• oxalic acid

• nitric acid

• carbonic acid

• acetic acid

Milk is a very weak acid. What might its pH value be?

• 6.5

• 7.8

• 4.2

• 12.2