?

2. Classify the following acids, bases, or amphiprotic substance according to the Arrhenius Theory:

a. HNO₃(aq)

b. HCl(aq)

c. KOH (aq)

d. Ca(OH)_{2 (aq)}

_3. Classify the following acids, bases, or amphiprotic substance according to the Bronsted-Lowry Theory:

a. NH₄¹⁺

b. H₃O⁺

c. HCO₃^1-

d. H₂O

e. H₂SO₄

4. Calculate the hydrogen ion (H₃O⁺) concentration in Molarity for each of the following pH

a. pH = 5.2

b. pH = 9.6

c. pOH = 2.5

5. Calculate the pH of the following solutions:

a. 0.00051 M HCl

b. 1.3 X 10^-8 M H₃O⁺

6. If 28.7 mL of 0.375 M sodium hydroxide is necessary to neutralize 35.0 mL of sulfuric acid, calculate the Molarity of the sulfuric acid.

NaOH + H₂SO₄ -> Na₂SO₄ + H₂O (unbalanced)

a. Determine the moles (mmoles) of sodium hydroxide used

b. Determine the moles (mmoles) of sulfuric acid reacted

c. Determine the molarity of the sulfuric acid

7. (tough problem) If 1.5 grams of 80.0% by mass sample of potassium hydroxide is titrated with 10.0mL of hydrochloric acid, determine the molarity of the hydrochloric acid.

KOH + HCl -> KCl + H₂O

ScholarMatic: Explanation & Answer

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