Question

A buffer solution containing H2CO3 and NaHCO3 is to be produced to maintain in pH 7. What must be the ratio of NaHCO3/Na2CO3 for this?
Ka=4.3x10-7.

Answer 1

The Henderson–Hasselbalch equation

Answer 2

\[pH= pK _{a} + \log \left[ \frac{ base }{ acid } \right]\]
You mean this equation, right?

Answer 3

yup

Answer 4

Using this equation, I got the answer 4.3. Can you check if it's correct?

Answer 5

pka value how much u got

Answer 6

pKa value= 6.3665 The final answer I got is 4.3.