A buffer system is set up with [HA]=2.0[A^-]. if Pka = 4.8, what is the pH...

Question

Question

A buffer system is set up with [HA]=2.0[A^-]. if Pka = 4.8, what is the pH of the buffer?

Answer 1

Answer #1

HA = 2.0 A-

pH = pka + log ( A- / HA) [ handerson hasselbalch equation]

= 4.8 + log ( A- / 2 A-)

= 4.49897

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Answer 2

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