A process is under development to manufacture MgO components for a filter

application. The goal is to obtain a porous body with 25% porosity with only open pores

(no closed porosity). The component weighs 0.25 kg (dry weight). The lattice parameter, a, for MgO at room temperature is 0.4215 nm. An apparatus has been set up to weigh samples suspended and saturated in kerosene, and samples saturated with

kersosene. You are going to use this apparatus to check a series of samples with

variable sintering cycles to determine the desired cycle.

a. What is the theoretical density of MgO?

b. What is the desired bulk density of the porous body?

c. What should the sample weigh if it is suspended in kerosene?

d. What should it weigh if it is saturated in kerosene but not suspended?