A teacher provided acetic acid, water, lemon juice, aqueous solution of sodium hydrogen carbonate and sodium hrdroxide to students in tha lab toh determine the pH values of these solutions using pH paper. One of the students reported the pH values of given sunstances as 3,12,4,8,and 14 respectively. Which one of these values are not correct? Write it's correct values stating the reason.
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Answer:
water has ph 7 and not ph 12
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as acetic acid is a weak acid its PH value is 4 not 3
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