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9) Arsenic acid (H,AsOa)is triprotic, wih K5.5X103, K, 1.7X107, and K,y 5.1X102. What is the pH of a 0.80 M solution of arsenic acid? 10) Explain why some salts produce neutral solutions while others produce solutions that are acidic or basic. (10 pts.) 11) What is the pH of a 0.84 M solution of NaCN (K, of HCN-6.2X1010)
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