ame: One molar solutions of the following salts: The resulting solutions will respectively be il. neutral H. basic il. acidic ii, basic ii. acidic 5. i, Naf l. AICI, ill. NH.CI i. basic a) b) ill. acidic il, neutral il. acidic il, basic . neutral I. acidic i. basic c) i. acidic i, acidic d) e) If the ionization product of water, Kw, is 3.5x 10 at 80 "C, then what is the pH of a neutral aqueous solution at that temperature? 6. e) 6.23 c) d) 6.77 a) b) 7.76 6.45 7.00 Which of the following acids is strongest? a) hydrofluoric acid (HF); b) formic acid (HCHO:); ascorbic acid (H;CHGO6) ; c) benzoic acid (HC-HSO2); d) e) hypochlorous acid (HOCI) ; 7. K= 3.5 x 10 K= 1.8 x 10 Kas = 7.9 x 105 K = 6.5 x 10s K = 3.5 x 10 8. If you know Ko for ammonia (NH), you can calculate K, for ammonium (NHa") by the equation: e) none of these K = 1/ K K, = Ko/ Ku a] K, = Ku x Kb b) K = Ku/ K d) Hydrogen sulfate (HSO.) can act as either an acid or a base in water. In which of the following reactions does HSO act as an acid? 9. a) HSO + H20 = H;SO4 + OH" b) HSO. + H3O' SO +2 H20 c) HSO. + OH" H2SO4 + 0 d) HSO + H20 so+ H3O e) none of these 10. A calcium hydroxide solution is at pH 11.44. The OH" concentration of this solution is: a) 3.6 x 1012M b) 5.5 x 10 M none of these c) d) 2.8x 10 M 1.4 x 10M