BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ammonia with pH 13
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Water with pH 7
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Milk with pH 5
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Lemon juice with pH 2
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Detailed explanation-1: -Among the following, lemon juice is the most acidic substance. Thus, it has highest amount of hydrogen ions.
Detailed explanation-2: -The concentration of H+ ion can be determined using the formula shown below. Substitute the value of pH in the above formula. Thus, the concentration of H+ in lemon juice is 3.98×10−3 M 3.98 × 10 − 3 M .
Detailed explanation-3: -Given the concentration of all the acidic solutions is equal. However, H2SO4 being the strongest acid will dissociate completely thus giving the highest concentration of H+ ions.
Detailed explanation-4: -On the pH scale, the number which has the highest concentration hydrogen ions is generally 0. This represents a solution with a hydrogen ion concentration of 1 mole per liter or 1 M.