Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of sodium cyanate (NaCNO) and 1.0 mole of cyanic acid (HCNO) in enough water to make 1.0 liter of solution.[Ka(HCNO) = 2.0 * 10-4]
A) 0
B) 3.0
C) 3.7
D) 4.4
E) 5.0
Correct Answer:
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