Acid/Base Review

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Acid/Base Review

• Honors Chemistry

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What is the name of H2SO3?

1. Hyposulfuric acid
2. Hydrosulfuric acid
3. Sulfuric acid
4. Sulfurous acid
5. Hydrosulfite acid

3
What is the property of a base?

1. Bitter taste
2. Watery feel
3. Strong color
4. Unreactive
5. nonelectrolyte

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What is the charge on the hydronium ion?

1. 2-
2. 1-
3. 0
4. 1
5. 2

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If the hydroxide ion concentration is 10-10M,
what is the pH of the solution?

1. 1
2. 4
3. 7
4. 10
5. 14

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If the pH is 9, what is the concentration of
hydroxide ion?

1. 10-1 M
2. 10-5 M
3. 10-7 M
4. 10-8 M
5. 10-14M

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How many free hydrogen ions are there in one
liter of water?

1. None, they are all hydrated
2. Approximately 10-7 mol
3. Approximately 10-1 mol
4. Approximately 100 mol

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A liter of impure water has 10-4 mol of hydroxide
ions. What is the concentration of hydronium
ions in this sample of water?

1. 10 -4 M
2. 10 -10 M
3. 10 7 M
4. No determination can be made from the information
   given

9
What is the concentration of hydronium ions in a
neutral solution

1. 10 M
2. 10 -10 M
3. 10 -7 M
4. No determination can be made from the information
   given

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For a solution to be classified as acidic, the

1. hydrogen-ion concentration must be 10 -7 M.
2. hydrogen-ion and hydroxide-ion concentration must
   be equal
3. hydrogen-ion concentration must be greater that
   the hydroxide-ion concentration
4. hydrogen-ion concentration must be 7M or greater

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A solution in which the hydroxide-ion
concentration is 1 x 10 4 M is_________?

1. Acidic
2. Basic
3. Neutral
4. None of the above

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Which of these solutions is the most basic?

1. H 1 x 10 2 M
2. OH 1 x 10 4 M
3. H 1 x 10 11 M
4. OH 1 x 10 13 M

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In a neutral solution, the H is ___?

1. 10-14 M
2. Zero
3. 1 x 107 M
4. Equal to OH-

14
What is the pH when the hydrogen ion
concentration is 7.0 x 10 3 M

1. 1.9
2. 2.2
3. 3
4. 4

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An indicator is what type of compound?

1. Oxidizing agent
2. Weak base or acid
3. Strong base or acid
4. Salt
5. Reducing agent

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What is an acid according to Arrhenius?

1. A substance that ionizes to yield protons in
   aqueous solutions
2. A substance that is a hydrogen ion donor
3. A substance that accepts an electron pair
4. A substance that is a hydrogen ion acceptor
5. A substance that donates an electron pair

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Which of these is an Arrhenius base?

1. LiOH
2. NH3
3. H2PO4-
4. HC2H3O2

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What is transferred between a conjugate acid-base
pair?

1. An electron
2. A proton
3. A hydroxide ion
4. A hydronium ion

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What is the term used to describe a substance
that can be both an acid and a base?

• amphoteric
• amphoprotric
• Bronsted acid / base
• Arrhenius acid / base

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In the reaction, NH4 H20 ? NH4 H30, water
behaves as a(n)

1. Arrhenius acid
2. Arrhenius base
3. Bronsted-Lowry acid
4. Bronsted-Lowry base

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In the reaction, CO32- H20 ? HC03- OH-, the
carbonate ion behaves as a(n)

1. Arrhenius acid
2. Arrhenius base
3. Bronsted-Lowry acid
4. Bronsted-Lowry base

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Which of the following represents a
Bronsted-Lowry conjugate acid- base pair?

1. SO32- and SO2
2. CO32- and CO
3. H30 and H2
4. NH4 and NH3

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What is an acid, according to Lewis?

1. A substance that ionizes to yield protons in
   aqueous solution
2. A substance that is a hydrogen ion donor
3. A substance that accepts an electron pair
4. A substance that is a hydrogen ion acceptor
5. A substance that donates an electron pair

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What is the concentration of hydrochloric acid
if 20.0 ml of acid is neutralized by 30.0 ml of
0.20 N sodium hydroxide?

1. 0.06M
2. 0.14 M
3. 0.30 M
4. 0.60 M

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How many milliliters of 0.20N NaOH are required
to neutralize 30.0 mL of 0.50N HCI?

1. 12 mL
2. 50 mL
3. 75 mL
4. 100 mL

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How many grams of sodium hydroxide are in 500 mL
of a 0.1N NaOH solution?

1. 2 g
2. 4 g
3. 20 g
4. 40 g

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What does a buffer do?

1. Keeps the pH of a solution constant
2. Keeps the salt concentration of a solution
   constant
3. Keeps the sodium concentration constant
4. Keeps the chloride concentration constant