On mixing any two fruit juices ,would pH remain same or differ
Answers
The pH changes if the fruit juices are from different fruits and remains same if they are from same.
- On mixing any two fruit juices (assumed of equal volumes),
- assume that they are from the same fruit,
pH = -log[H⁺]
from above equation, mixing two fruit juices is mixing two since, they are assumed to be same, mixing two ( H⁺) ions of same concentration of equal volumes doesn't alter the concentration of H⁺
that is , [H⁺] remains same from same fruit juice.
Thus, -log[H⁺] remains same, therefore pH remains unaltered.
Similarly, mixing two different fruit juices of same volume is same as mixing two different [H⁺] ions.
Therefore, resultant [H⁺] is sum of the two [H⁺]
assume them to be [H₁⁺] and [H₂⁺]. Therefore resultant concentration of hydrogen ions is [H⁺]=[H₁⁺] + [H₂⁺]
Therefore pH = -log[H⁺],
this is different from single juice concentration.
therefore pH changes on mixing two different juices of equal volume.
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