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The pH of the solution obtained by mixin...

The pH of the solution obtained by mixing 100 mL of a solution of pH=3 with 400 mL of a solution of pH=4 is

A

7-log 2.8

B

4-log 2.8

C

5-log 2.8

D

3-log 2.8

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The correct Answer is:
B
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