Question

# Enter your answer in the provided box. What is the pH of 0.85 M pyridinium chloride,...

What is the pH of 0.85 M pyridinium chloride, C5H5NHCl?

pKb of C5H5N = 8.77

C5H5NHCl is the salt of strong acid and weak base . so pH < 7

pH = 7 - 1/2 (pKb + log C)

= 7 - 1/2 (8.77 + log 0.85)

pH = 2.65

Note : i took pKb value as 8.77 . please check once whether it is match with your value or not . if any doubt please ask me in comment

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