Porosity (%) = [(Particle Density - Bulk Density) / Particle Density] x 100 Given: Bulk Density = 1.5 g/cm³ Particle Density = 2.65 g/cm³ Porosity (%) = [(2.65 - 1.5) / 2.65] x 100 Porosity (%) = (1.15 / 2.65) x 100 Porosity (%) = 0.434 x 100 Porosity (%) = 43.4%
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