Hi
We have,
Number of moles = 2 moles
Change in pH = 3.4 - 2.9 = 0.5
Now, buffer capacity
= number of moles/ change in pH
= 2 /0.5
= 4
Thus, 4 is the buffer capacity
Thankyou
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile