The pH of lemon juice is about 2.2.

(a) What is the concentration of hydrogen ions in lemon juice?

(b) A person squeezes 3 oz of lemon juice into a cup. Based on your answer to part (a), how many hydrogen ions does this juice contain?
For example you could enter 2.45×1018 by entering 2.45 * 10^(18) instead of 2,450,000,000,000,000,000.

Number of ions:

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