4.8 A sample of soil was compacted into a 1/30 ft³ laboratory mold. The weight of the compacted soil was 4.1 lb and its moisture content 13.1%. Using a specific gravity

of solids of 2.70, compute the unit weight, dry unit weight and degree of saturation of this compacted soil. This compacted soil sample was then submerged in water. After 2 weeks, it was found that the sample had swelled and that its total volume had increased by 5%. Compute the new unit weight and moisture content of the soil sample after 2 weeks of submersion in water.