Question

Question #166b1

Answer 1

The accuracy of both values is the same (same number of significant digits).

Explanation:

The value of `4.60` is more probable though, because it is a salt of a weak base and a strong acid, and solutions of these tend to lean to the more or less acidic side (pH<7).

The same goes the other way around: a solution of sodium carbonate (strong base + weak acid) is definitely basic (pH>7).