## Chemistry (4th Edition)

(a) $pH \approx 7$ (b) $pH \lt 7$ (c) $pH \approx 7$ (d) $pH \lt 7$
(a) Analyze the conjugate pairs of the anions: $KOH$ is a strong base and $HBr$ is a strong acid. Therefore, this salt is going to form a nearly neutral aqueous solution: $pH \approx 7$ (b) Analyze the conjugate pairs of the anions: $Al(OH)_3$ is a weak base and $HNO_3$ a strong acid. Therefore, a solution with this salt is going to be acidic. $pH \lt 7$ (c) Analyze the conjugate pairs of the anions: $Ba(OH)_2$ is a strong base and $HCl$ is a strong acid. Therefore, a $BaCl_2$ solution is nearly neutral $pH \approx 7$ (d) Analyze the conjugate pairs of the anions: $Bi(OH)_3$ is a weak base and $HNO_3$ a strong acid. Therefore, a $Bi(NO_3)_3$ solution is going to be acidic: $pH \lt 7$