Pka values of H3PO4 are 2.12; 7.21; and12.67. The pH of phosphate buffer containing 0.2 M NaH2PO4 and 0.1 M Na2HPO4 is

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Pka values of H3PO4 are 2.12; 7.21; &12.67. The pH of phosphate buffer containing 0.2 M NaH2PO4 & 0.1 M Na2HPO4 is

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Pka values of H3PO4 are 2.12; 7.21; &12.67. The pH of phosphate buffer...

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Method to Solve :

In this buffer, the weak acid is NaH₂PO₄, and the conjugate base is Na₂HPO₄.

Without spectator ions, you have H₂PO4^- and HPO₄^2-

pH = pKa + log [conjugate base]/[acid]

pH = 7.21 + log [0.1 M]/[0.2 M]

pH = 7.21 + (-0.30)

pH = 6.91

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Pka values of H3PO4 are 2.12; 7.21; &12.67. The pH of phosphate buffer containing 0.2 M NaH2PO4 & 0.1 M Na2HPO4 is

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Pka values of H3PO4 are 2.12; 7.21; &12.67. The pH of phosphate buffer containing 0.2 M NaH2PO4 & 0.1 M Na2HPO4 is for IIT JAM 2025 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about Pka values of H3PO4 are 2.12; 7.21; &12.67. The pH of phosphate buffer containing 0.2 M NaH2PO4 & 0.1 M Na2HPO4 is covers all topics & solutions for IIT JAM 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pka values of H3PO4 are 2.12; 7.21; &12.67. The pH of phosphate buffer containing 0.2 M NaH2PO4 & 0.1 M Na2HPO4 is.

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