6D.11 7th edition

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Hailey Boehm 2H
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6D.11 7th edition

Postby Hailey Boehm 2H » Fri Dec 07, 2018 4:12 pm

This question states: "decide whether an aqueous solution of each of the following salts has a pH equal to, greater than, or less than 7. If pH>7 or pH<7, write a chemical equation to justify your answer. .... (e)AlCl3 (f)Cu(NO3)2.
I am confused on parts e and f of this question. The answer for both parts is pH<7 and I am having trouble writing the chemical equation for them.

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Re: 6D.11 7th edition

Postby Chem_Mod » Sun Dec 09, 2018 1:06 pm

In each case, the central metal atom can lower the pH by complexing with hydroxide ions, which increases the effective [H+], thereby lowering pH.

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