Answer to Question #192133 in General Chemistry for Zubayer

Question

A buffer solution is prepared via adding solution A (Sodium dihydrogen phosphate 27.6 gm up to 1000mL distilled water) and solution B (Disodium hydrogen phosphate 5.362gm up to 100mL distilled water). During preparation, 1000 mL buffer is prepared via adding 80mL of solution B to 920mL of solution A. Show a theoretical approach to calculate the pH of the buffer solution.

Answer 1

Dihydrogen phosphate 27.6 gm up to 1000 mL distilled water) and

solution B (Disodium hydrogen phosphate 5.362 gm up to 100 mL

distilled water). During preparation, 1000 mL buffer is prepared

via adding 80 mL of solution B to 920 mL of solution A.

That is the theoretical method of calculating the ph of the buffer.

from above theoretical method the ph of the buffer solution came to 9.37.