Does anyone know this???

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?