Question

Part A

Calculate the solubility (in grams per 1.00×102mL1.00×102mL  of solution) of magnesium hydroxide in a solution buffered at pH = 10.

Express your answer to two significant figures.

Part B
Calculate the solubility (in grams per 1.00×102mL of solution) of magnesium hydroxide in pure water.
Express your answer using two significant figures.

S=  ? g/(1.00×102mL)

Part C
How does the solubility of Mg(OH)2 in a buffered solution compare to the solubility of Mg(OH)2 in pure water?

Answer 1

Answer:. main objective is to calculate. The following Questions. ma OI The Gwen data: - per 102 in mL of in solution a solution solubility buffered at grams pH = 10 ksp for mg (OH)2 = 2.06810-13 PH =10 POH - Pkw-PH z 14-10 4 " (oh ] . 10 Pot 1 Mg Cot) = 10uM - ingat + 204 10-4 25 How 204428 tgp fotot) [on3*= C1 (1o2+283? compared small to the initial concentral of The As s hydroxide o is very ion. tse 2.068 1013 - 2.06 16 M S- (162)² - long Molar sclubility Mg(OH)2 = 2:06*10 Mol lift mass mg (OH)2 = 58-319. mol- Molar

Pg-02 1000 mi solubility in gram = 206810 8 x 58.319 for 102ml , 2.06810 4 58.319 x 102 my s, ; 1:2010-3 x 0.102 Si=0.011769 Bis 11.76 mg P-B : - Ksp ? 206x10-'13 Mg(OH)2 - > ngut +20+ Uw 3 is as s as Ksp = [regzt] [om-]2 tsp = $(25) = 453 SS - Kaup 5206410 18 = 3.72 xo FM 33, Jasp 3a Molar sole bility mglott) = 3.72x10 model molar malf of Mg(OH)₂ = 58:31 g. mort s - 3.72x10 molett + 58.31 x 102m! 3. 2.244.10 49 ng (ooom! Part :- 0.01176 9. zzixio king a 5.32 x 10-4 si - 0.0000 532.