Question
Chemistry Question on Law Of Chemical Equilibrium And Equilibrium Constant
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ions in it.
Answer
Given, pH = 3.76 It is known that, pH = -log[H+]
⇒ log [H+] = -pH
⇒ [H+] = antilog (-pH) = antilog (-3.76) = 1.74 × 10-4 M
Hence, the concentration of hydrogen ions in the given sample of vinegar is 1.74 × 10-4 M.