avaneeshvalluripalli avaneeshvalluripalli

02-05-2024
Chemistry

Answered

The acid ionization equilibrium for HNO2 is represented by the equation above. A 250.0mL buffer solution is prepared by mixing 125.0mL of 0.20MHNO2 and 125.0mL of 0.1MNaOH. To test the buffer capacity, the pH is measured and recorded in the table for four samples of the buffer and one sample of a mixture of the buffer and HCl. Which of the following best helps explain why the pH of sample 4 is lower than the pH of the other samples containing only buffer solution

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