A 50 mL solution of pH = 1 is mixed with a 50 mL solution of pH = 2 . The pH of the mixture is

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Question: Answered & Verified by Expert

A

50 mL

solution of

pH = 1

is mixed with a

50 mL

solution of

pH = 2

. The

pH

of the mixture is

ChemistryIonic EquilibriumJEE Main

Options:

A 0.86
B 1.26
C 1.76
D 2.26

Solution:

2540 Upvotes Verified Answer

The correct answer is: 1.26

V_{f} = 100 m l

C_{f} = \frac{1 0^{- 1} \times 50 + 1 0^{- 2} \times 50}{100} = 0.055 M

p H = - \log (0.055) = 1.26

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