3). Powder Bulk Density and Porosity a. Calculate the bulk density of the powder, DB, the porosity (pore volume per unit mass), P, and the % voidage for a powder sample under the following three packing conditions. The powder has a true density of 1.15g/cm3. 1. Condition 1 (loose packing): a 35 gram sample of the powder is poured into a 100ml graduated cylinder (to fill the cylinder). 2. Condition 2 (moderate packing): a 35 gram sample of the powder is poured into a 100ml graduated cylinder (to fill the cylinder). The cylinder containing the loosely packed powder is tapped on the surface of the lab bench 3 times. The fill volume of the cylinder recorded is 45ml i.e. the packed powder goes up to the 45ml line of the graduated cylinder. 3. Condition 3 (close packing): the cylinder containing the moderately packed powder from condition 2 is tapped on the surface of the lab bench an additional 47 times. The fill volume of the cylinder recorded is 38ml. b. Describe a method one could use to confirm the \% void space calculated in part a. Does this method allow one to distinguish internal particle porosity from the yoidage between particles? Explain