Question

(a) If the molar solubility of Cu₃(PO₄)₂ at 25 ^oC is 1.67e-08 mol/L, what is the K_sp at this temperature?

K_sp =  




(b) It is found that 8.90e-06 g of Y₂(CO₃)₃ dissolves per 100 mL of aqueous solution at 25 ^oC. Calculate the solubility-product constant for Y₂(CO₃)₃.

K_sp =  




(c) The K_sp of Ga(OH)₃ at 25 ^oC is 7.28e-36. What is the molar solubility of Ga(OH)₃?

solubility =  mol/L

Answer 1

114 moc a) cuy (POx), (13) = 3 cu?* (Qc) + 2 por Caes - GINEN, Molar solubility of cuz (POA), is 1.6+ x108 moe : 1 cu²t]: 3 x 1067x108 = 5:01 X108 mol/L [pos] = ax 1068 x108 = 30 34 x108 mall Risp [cu?=)? [102] DISSOLES PER 100 ml : ( 5.01 xã) ( 3. 3 xe” - ksp = (1.40 x 1034 o no. of moles op Yz (603)ita 8.80 xio ºg ovexioo moe 3510 84 gmoet molne Solusinity of 42 (603)2 - 2.4pxió mou i [431]: 242.48 x cöt 4.88 x17 molly [co] = 3x2.49 x10t = futx10t mock 42 (603), (9 = 2489 (22) + 3 coa caz) Ksp = (y2+3^ [coz 73 = 4.98 x8+)? (448 xist) = (1:03 x 1059

c) cor 's' BE THE SOLU Bizity of Ga (OH)₂ (Qa?? Ja s , (OH) = 36 Ga(OH, (D = Gal? (22) + 3OH (Q£) Ksp = (Galt] [ou-Jº = 428 x 1624 3) S (30) , 4128 x1036 : 2+5°: 7128 x16 36 a s=16:46 01013 mall I molar solubic a s=1 6. 46 X10 male of GQ (OH)ą.