Chemistry Practice Problems Ionic Salts Practice Problems Solution: Which of the following diagrams best represents an...

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Solution: Which of the following diagrams best represents an aqueous solution of NaF? The water molecules are not shown for clarity.

Problem

Which of the following diagrams best represents an aqueous solution of NaF? The water molecules are not shown for clarity. Solution A has four Na+ and four F- ions present.  Solution B has six Na+, four F-, and two OH- ions present.  Solution C has six Na+, four F-, two OH- ions and two HF molecules present.

Solution

We’re being asked to determine the diagram that best represents an aqueous solution of NaF.


Ionic salts are made up of positively charged ion (cation) and a negatively charged ion (anion). To determine if the ionic salt would be acidic, basic, or neutral, we need to identify the acidity or basicity of the cation and anion.

For cations:

transition metal

▪ charge of +2 or higheracidic
▪ less than +2 → neutral solution

main group metal

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