For H3PO4, Ka1 = 7.3 x 10³. Ka2 = 6.2 x 10-8, and K₁3 = 4.8 x 10-13. What is the concentration of the HPO42- in a phosphoric acid solution whose initial acid concentration was 0.12 M? 4.8 x 10-13 M 8.6 x 10-5 M O 6.2 × 10-8 M O 7.3 x 10³ M None of these choices are correct.

For H3PO4, Ka1 = 7.3 x 10³. Ka2 = 6.2 x 10-8, and K₁3 = 4.8 x 10-13. What is the concentration of the HPO42- in a phosphoric acid solution whose initial acid concentration was 0.12 M? 4.8 x 10-13 M 8.6 x 10-5 M O 6.2 × 10-8 M O 7.3 x 10³ M None of these choices are correct.

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter10: Acids, Bases, And Salts

Section: Chapter Questions

Problem 10.46EP: Using the acid ionization constant information given in Table 10-3, indicate which acid is the...

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4
For H3PO4. Ka1 = 7.3 × 10-3, K₂2= 6.2 x 10-8, and K₂3=4.8 x 10-13. What is the
concentration of the HPO42- in a phosphoric acid solution whose initial acid
concentration was 0.12 M?
4.8 x 10-13 M
8.6 x 10-5 M
6.2 x 10-8 M
O 7.3 × 10 ³ M
None of these choices are correct.

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