Question

50ml of 0.2M solution of acid HA (Ka = 1.0 x 10^-5)
and 50ml of NaA solution are given. What
should be the concentration of NaA solution to
make a buffer solution with pH = 4.00?
0.02 M
0.01 M
0.1 M
0.2 M

Answer 1

Answer:

Related Questions to study

When 73 g of HCl is added to 1 L of an acidic buffer, its pH changes from 3.4 to 2.9. The buffer capacity of the buffer solution is:

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If 40 ml of 0.2 M CH

3

COOH is titrated with 0.2 M NaOH, then the volume (in ml) of base that must be added to form a buffer solution with greatest buffering capacity is:

Answer 2

Explanation:

option4 is right hai 0.2m