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   ocr: CH111 FINAL 1986 PAGE6 6. 38. The at 20"C. solubility Find of Ksp silver phosphate (A9,PO, In water is 0.0067 9/liter (a) 4.48, x 10-5 (b) 2.13x x 10-6 (c) 1.77 x 10-18 (d) 8.94 x 10-25 - 39. 1 pH of Asolution the is solution? 0.3 M sodiun (Ka 4.9 cyanide x 10-10 (NaCH) for and HCN). 0.3 M HCN. What is the (a) 13.12 (b) 9.31 (c) 4.69 (d) 7.00 40. - For the complex ion equilibriun of NH3 for the needed to dissociation obtain a of Sot Cu(NM,R contarsion calculate the concentration of Cu+2 to Cu(NH,42+. (Ka 2 x10-13 for Cu(NH3)*2). (a) 6.7 x 10-3M (b) 2x10-3 (c) 7.3 * 10-"4H (d) 1.5 x 10-6H 41. - ...