Question

b. calculate the molar solubility(s) and from that the Ksp of Ba(OH)2 at 0*c.

c. calculate the delta G* for the dissolution of Ba(OH)2 from the Ksp calculated in part b, at 0*c.

Section: Date: Pre-Lab Questions 1. A 10.0 mL sample of Balohi, at Or is itrated with 200 M HCL and 5.22 ml of the acid are used to reach the yellow endpoint. a. Calculate the concentration of OH in the 10.0 mL sample of BalOH) at O'C. AC: 0.230M or 0.230 muer volume H1 z S. 22 mi or 52210 L mole HC1=0.230 mole & 5.22 x 103 1.20.10-3 mol Also, given volume of OH - 10 mL or 10.0 1032 concentration of OH-mole on = 1.20* 158 mole - 10.12m) 10.s 10-3 L b. Calculate the molar solubility (S) and from that the Ksp of Ba(OH) at 0°C. c. Calculate the AG" for the dissolution of Ba(OH)2 from the Kio calculated in part b, at 0*C. ermodynamics

Answer 1

2HCl - Bacl2 (a Bacouba + MV. At pa. Point or end polved ed of Bacol)2 = 29. YHCT 2 Nfactor MX lox 2 = 0.2304 5.23 x1 M = 0.06003 Hence Batohle - Bota + 2040 0.06 20.06 0.06 [OH-] =0:12M 6) Solubility of Bacon) a his Bato+ 204 Bacon) (s) 25 s S-0-06M. Ksprud (5) (25)? = 483 cu 1000633 KSP = 8.64 x 10-4 M3 (c) och = - RT en kop -8.3x273 in (8.64 X164 = 15.983 kJ/mol