Magnesium oxide particles are compacted and fired at a high temperature to produce a strong ceramic shape. The theoretical density of MgO is 3.58 g/cm³. The ceramic shape subsequently is weighed when dry (340 g), after soaking in water (450 g), and while suspended in water (242 g). Calculate the apparent porosity bulk density and fraction of closed nores

Magnesium oxide particles are compacted and fired at a high temperature to produce a strong ceramic shape. The theoretical density of MgO is 3.58 g/cm³. The ceramic shape subsequently is weighed when dry (340 g), after soaking in water (450 g), and while suspended in water (242 g). Calculate the apparent porosity bulk density and fraction of closed nores