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Exam 15: Electrolytes, Acids, and Bases

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Question 31

True/False

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Sucrose (table sugar) is a strong electrolyte.

A) True
B) False

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Question 32

Multiple Choice

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Which of the following compounds is a strong electrolyte when dissolved in distilled water?

A) sodium chloride
B) sucrose
C) acetone (nail polish remover)
D) ethyl alcohol

E) None of the above
F) All of the above

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Question 33

Multiple Choice

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Match each of the acids with the maximum number of H?O+ produced per molecule of acid. -hypochlorous acid

A drop of a full unit in the pH scale ________.

Stomach juices have a pH close to ________.

Milk is slightly basic.

The pH of blood is approximately ________.

Identify each of the substances as an electrolyte or non-electrolyte. -aqueous baking soda solution

PH₃ cannot serve as a Bronsted-Lowry base.

Match each substance with its corresponding fact. -SO?2-

Identify each of the substances as an electrolyte or non-electrolyte. -aqueous rubbing alcohol

Identify each of the substances as an electrolyte or non-electrolyte. -seawater

HPO₄2- is the conjugate base of H₂PO₄-.

The compound HA is an acid that is soluble in water. Which of the "beakers" below shows HA behaving as a weak acid in water?

Identify each of the substances as an electrolyte or non-electrolyte. -aqueous hydrochloric acid solution

Which of the following acids can produce only one H₃O+ ion per molecule of acid when dissolved in water, although itself has other non-ionizable hydrogens?

Identify each [H?O+] / [OH-] / pH / pOH as acidic or basic. -pOH = 9.1

Identify each of the substances as an electrolyte or non-electrolyte. -aqueous sodium chloride solution

Identify each of the acids as a strong acid or a weak acid. -phosphoric acid

The stomach is very sensitive to changes in pH (particularly highly acidic conditions). Suggest why aspirin, acetylsalicylic acid, causes stomach upset. What is the purpose of so-called buffered aspirin tablets?