How to do the matching?

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1 Answer
anor277
Mar 11, 2018

Well, #"copper sulfate"# is MILDLY acidic....

Explanation:

And thus #ararrb#...

And sodium acetate is the conjugate base of a WEAK acid, and thus its solutions are mildly basic....

#H_3C-CO_2^(-) + H_2O(l) rightleftharpoons H_3C-CO_2H(aq) + HO^-#..

and so the #pH>7#...and thus #brarrb#...

And on the other hand, potassium nitrate is the salt of a strong acid, and a strong base....and thus solutions of potassium nitrate should be very closely to neutrality, i.e. #pH=7#...

There is a typo in column b, the third option should be #pH=7#...

As always, #pH=-log_10[H_3O^+]#

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