Acid Base Review 2022

Calculate the pH of a solution which [H3O] is 1.3 E-5

• 5

• 4.89

• 7.69 E -10

• 9.11

Why is water amphoteric?

• because it has both H+ and OH-

• because it can accept an H+ and donate an H+

• because its pH is 7

• because its found all over the universe

The concentration of hydroxide ion, [OH-], in a solution is known to be 6.8 E-5. What is the pH?

• 1 E -4

• 1.5 E -10

• 4.2

• 9.8

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 shows the correct conjugate acid base pair?

• HCI (acid) / H₃O⁺ (conjugate base)
• HCI (acid) / CI^- (conjugate base)
• HCI (base) / CI^- (conjugate acid)
• HCI (base) / H₃O⁺ (conjugate acid)

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

• H+
• K+
• OH-
• H-

Identify the true statement about the following reaction:

F^- + H₂O --> HF +OH^-

• H₂O is a bronsted lowry base

• H₂O is not an acid or base according to either model

• H₂O is a bronsted lowry acid

• H₂O is an arrhenius acid