9. Solutions

Which of the following represents a non-electrolyte? 

a) (CH₃)₂NH₂                             b) NaOH                       c) HIO₃                         d) C₂H₅OH                    e) CsNH₂

Each of the following reactions depicts a solute dissolving in water. Classify each solute as a strong electrolyte, a weak electrolyte or a non-electrolyte.

KF is a strong electrolyte, and HF is a weak electrolyte. How is the solution of KF different from that of HF?

Write a balanced equation for the dissociation of each of the following strong electrolytes in water:

d. Fe(NO₃)₃

Indicate whether aqueous solutions of each of the following solutes contain only ions, only molecules, or mostly molecules and a few ions:

a. acetic acid, HC₂H₃O₂, a weak electrolyte

Indicate whether aqueous solutions of each of the following solutes contain only ions, only molecules, or mostly molecules and a few ions:

b. NaBr, a strong electrolyte

Indicate whether aqueous solutions of each of the following solutes contain only ions, only molecules, or mostly molecules and a few ions: c. fructose, C₆H₁₂O₆, a nonelectrolyte

Classify the solute represented in each of the following equations as a strong, weak, or nonelectrolyte:

b. NH₃(g) + H₂O(l) ⇌ NH₄⁺(aq) + OH^–(aq)

Classify the solute represented in each of the following equations as a strong, weak, or nonelectrolyte:

a. $K_{2}S{O}_4\left(aq\right)\stackrel{H_{2}O}{\to }2K^{+}\left(aq\right)+S{O}_4^{2-}\left(aq\right)$

Select the diagram that represents the solution formed by a solute <IMAGE> that is a

c. strong electrolyte

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Select the diagram that represents the solution formed by a solute <IMAGE> that is a (9.2)

a. nonelectrolyte

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Select the diagram (1, 2, or 3) that represents the solution formed by a solute represented by?

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that is a (9.2)

a. nonelectrolyte

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Select the diagram (1, 2, or 3) that represents the solution formed by a solute represented by?

<IMAGE>

that is a (9.2)

c. strong electrolyte

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