## Chemistry: Atoms First (2nd Edition)

$HCl$, $NH_4Cl$, $KNO_3$, $KCN$, $KOH$
1. Since the concentratrion is the same, we just have to identify the strength of the compounds. ** Remember, conjugate pairs of strong acids and bases are insignificant electrolytes. - Determine the significant electrolytes in each compound: - $KOH$ is a strong base. $K^+$: Insignificant acid. $N{O_3}^-$: Insignificant base. -$KNO_3:$ Neutral $K^+$: Insignificant acid. $CN^-$: Weak base. - $KCN$: Low basicity. $N{H_4}^+$: Weak acid $Cl^-$: Insignificant base. - $NH_4Cl$: Low acidity. - $HCl$: Strong acid. 2. In order of most acidic to most basic: $HCl, NH_4Cl, KNO_3, KCN, KOH$