JP 1000 Lecture 4: ejcv4j

City University of New York For Questions 12-14 consider a buffer solution comprised of 3.5 M NaHC20, and 1.8 M Na2C20 12)What is the pH of this buffer solution? a. 4.5 b. 4.2 c. 3.9 d. 1.5 e. 0.9 13)0ver what pH range will this solution be an effective buffer? a. 0.2-2.2 b. 2.9-4.9 c. 3.2-5.2 d. 3.5 -5.5 e. 3.9-5.9 14)Write the dissociation equation for the Kb of NaHC204. a. H2C204+H20H30+ HC204 c. C2042+H20 OH+HC204