Question 1

What is the molarity of 250 mL of a solution containing 5.9 g of sodium chloride?

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Question 2

In each of the following cases, write down the oxidation number of the indicated atom. a. P in P₄ b. C in C₂H₆ c. S in H₂SO₄ d. Mn in MnO₄^- e. P in Na₃PO₄

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Question 3

Identify the element being oxidized in the following reaction. 4Al + 3O₂→ 2Al₂O₃

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Question 4

Identify NaOH as an electrolyte or nonelectrolyte.

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Question 5

Write a short definition for an Arrhenius acid.

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Question 6

Write a short definition for a Brønsted base.

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Quiz 4: Reactions in Aqueous Solutions