1. A clean rock sample has a dry mass of 127 g, water-saturated mass of 136.5 g, grain density of 2.71 g/cc. The dimensions of this sample are: 3.81 cm

of diameter, and 5 cm of length. Use different equations to calculate the porosity of the rock, and compare. Note: Use 1 g/cc for the density of the water (fresh water).10 POINTS b) Calculate absolute porosity of this sample using the density-porosity equation. a) Calculate absolute porosity of this sample using only bulk and matrix volumes. d) Compare and discuss the results of parts (a) to (c) c) Calculate the effective porosity of this sample.