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H2O+H3PO4 iff(H3O)^(+)+(H2PO4)^- pK1=2....

`H_2O+H_3PO_4 iff(H_3O)^(+)+(H_2PO_4)^- pK_1=2.15 `
`H_2O+H_3PO_4 iff(H_3O)^(+)+(HPO_4)^-2 pK_2=7.20`
Hence pH of 0.01 M `NaH_2PO_4` is:

A

9.35

B

4.675

C

2.675

D

7.35

Text Solution

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The correct Answer is:
B
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