please answer each part A, B, C, D with an explanation

A researcher dispenses distilled deionized water from a 20-ml transfer pipet into an empty 8.437 6-g weighting bottle. If the total mass of water and weighting bottle is 28.584 5 g, what is the volume of the water delivered by the 20-ml pipet? The density of water is 0.996 786 7 g/mL. Given that the density of air is expected to be 0.0011917 g/mL and that of the calibration weights is expected to be 7.95 g/mL at the lab temperature near 23.3C temperature, answer the following a. The buoyancy correction factor, B, is expected to be (report to 4 decimal places). It is unitless. b. The sample mass, m', 20.146 15 g. Report to the expected number of decimal places. Units are known to be g, so you needn't report the units c. Correct the mass for buoyancy. Report the corrected mass, m 20.147 g. show one extra significant digit d. Calculate the volume delivered by the pipette to 4 significant figures. 20.21 mL