Question

2. a) Consider a 100.0 mL sample of 0.175 M H2Cro,. For H2CrO, K. = 0.18 & Ka2 = 3.2 x 10-7. i) Determine the pH of this solution. i) What percentage of H CrO, ionizes? What percentage of HCrO iii) Rank concentration of the molecules ions present in solution from lowest concentration to the highest ionizes? concentration. i) Determine the pH. concentration. i) Determine the pH b) Consider a 100.0 ml, sample of 0.175 M H2A. For H2A, K.1 very large&K-1.6 x 103 ii) What percentage of H2A ionizes? What percentage of HA' ionizes? ili) Rank concentration of the molecules ions present in solution from lowest concentration to the highest c) Consider a 100.0 mL sample of 0.175 M Na2SO i) Calculate K, & Kb of SO,

Please show work, thank you

Answer 1

1000 牛JC + X Consldex o.O1TSx0 017 (Por weak eledrolyke 2. Kai 0017S → | 0.0562

loo inlHal mele 0.0562 Here t= nb.of moles du.ssouood 0 0562-y Negle d → る,2X10 0 582 ラ| I00

2- and 31 0

(İ), Alous overau conc-04 匚们 二0.0562 +0.00133 = 0.05753 pt Jog (0-05 753) ら PM--(-1-24)