0. If you mix equal molar quantities of HF (K.-7.2 x 10 and KCN KS 2.5 x 10 the resulting solution acidic because K. of HF is greater than K of CN b. basic because K. of HF is greater K. of HCN. c. basic because K. ofHF is greater than K, of CN d. basic because K, of F is less than K, ofCN e. neutral because the weak acid neutralizes the weak base. 11. Given the following equilibrium constants, K. (NHA 5.6 x 10 K, (Nor) 2.2 x 10 K-- 1.00 x 10 determine the equilibrium constant for the reaction below at 25 PC. NH4 (aq) +NO2 (aq) HNO20ac) NH, (aq) a. 1.2 x 10 b. 2.5 x 10 1.2 x 10 d, 8.1 x 10 e. 3.9 x 1012 12 What is the OH concentration in 0.51 M CH,coi(aq)? (Kh of CHbcoz 5.6 x 10 10 M b. 5.6x 10 M c, 5.9 x 10 M d. 1.7 x 105 M e. 1.8 x 103 M 13. A solution is made by diluting so mol Nacio to a volume of 3.0 L with water. What is the pH of the solution? (K, ofcIO 2.9 x 10 a. 3.66 b. 7.46 c, 10.34 d. 10.58 e. 13.22 14. The ph of aqueous 0.050 M trimethylamine is 11.24. What is the K, ofthis base? a. 6.6 x 10 5.8 x 10.12 c, 6.3 x 10 d. 1.1 x 103 e, 2.76 15. chemical equations corresponds to K for sos Which of the following a. Hsos (aq) H2O() HH2Soo(aq) OH (aq)