In: Chemistry
Question 16. A volume of 200.0 mL of a carbonic acid buffer for blood plasma is prepared that contains 0.403 g of NaHCO3 and 0.0149 g of H2CO3. At body temperature (37°C), the Ka of carbonic acid is 7.9 X 10-7.
H2CO3(aq) + H2O(l) ↔ HCO3—(aq) + H3O+(aq)
a. What is the [H2CO3]?
b. What is the [H3O+]?
c. What is the pH of the buffer?
d. Write a balanced chemical equation that shows how this buffer neutralizes added base.