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Answer: The concentration of lemon juice is higher than the concentration of household bleach by a factor of (100 billion)
Explanation:- pH is the negative logarithm of hydrogen ion concentration. Lower is the pH higher is the concentration.
Acidic solutions have pH less than 7, neutral solutions have pH 7 and basic solutions have pH more than 7.
Thus lemon juice with pH=2 , is acidic and has of concentration.
Thus household bleach with pH=13 , is basic and has of concentration.
Thus the concentration of lemon juice is higher than the concentration of household bleach by a factor of (100 billion)
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