SELECT * FROM question_mgmt as q WHERE id=3076 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=48 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.
Given that:
pH = 3.76
It is known that,
pH = -log [H+]
⇒ log [H+] = -pH
⇒ [H+] = antilog (-pH)
= antilog(-3.76)
= 1.74x10-4 M
Hence, the concentration of hydrogen ion in the given sample of vinegar is 1.74 × 10-4 M.
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