A buffer consists of 0.50 M NaH₂PO4 and 0.40 M Na₂HPO₄. Phosphoric acid is a triprotic acid ( Ka1 = 7.2 × 10⁻³, Ka2 = 6.3 × 10⁻⁸ , and Ka3 = 4.2 × 10⁻¹³).(b) What is the buffer pH?

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23-08-2022
Chemistry

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A buffer consists of 0.50 M NaH₂PO4 and 0.40 M Na₂HPO₄. Phosphoric acid is a triprotic acid ( Ka1 = 7.2 × 10⁻³, Ka2 = 6.3 × 10⁻⁸ , and Ka3 = 4.2 × 10⁻¹³).(b) What is the buffer pH?

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Tutorconsortium347 Tutorconsortium347 · Answer 1 · 2022-08-29T23:01:36-04:00

0.50 M NaH2PO4 and 0.40 M Na2HPO4 are combined to form a buffer. The three tricrotic acids that make up phosphoric acid are Ka1 = 7.2 103, Ka2 = 6.3 108, and Ka3 = 4.2 1013.

What is the difference between Tricrotic acids and phosphoric acids?

Having three hydrogen ions to donate to bases in an acid-base reaction is called Tricrotics acids whereas, Phosphoric acids are defined as the acids in which a less concentrated version of phosphoric acid is a colorless syrupy liquid, while pure phosphoric acid is a crystalline solid with a melting point of 42.35° C (or 108.2° F). While white phosphorus is used to create acid with a higher purity, phosphate rock is used to create crude acid.

To learn more about Tricrotic acids and phosphoric acids, visit:

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