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Acidic and basic solutions

Predict whether aqueous solutions of each of the following salts are acidic, neutral, or basic:

Potassium iodide

Potassium hydrogen phosphate

Are these two kind of similar? I thought that potassium did not react with water. or does it form KOH and then would always be the strongest because OH is the strongest base?

Solution Preview

Remember these rules:

Salts made from the conjugate base of a weak acid end up being an alkaline solution because they increase the concentration of OH-.

And salts made from the conjugate acid of a weak base end up being an acidic solution because they increase the concentration of H+.

KI (potassium iodide) is a neutral salt. Why is this so? Because it contains neither a replaceable hydrogen nor a hydroxide group. In other words, if ...

Solution Summary

This solution discusses whether aqueous solutions are acidic, neutral, or basic.

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