8. The following data were obtained: Weight of wet soil = 70.5 g Weight of dry soil = 62.5 g Volume of water before adding soil = 70 ml Final volume of soil-water mixture = 93 ml Total soil volume = 40 cm³ a. Calculate the bulk density. b. Calculate the particle density. c. Calculate the percent pore space.

8. A sample of soil has a water content w= 14.7%, and a cube of dimensions 10 cm x 10 cm × 10 cm weighs 18.4 N. The grain specific gravity Gs = 2.72. Calculate the unit weight, the void ratio and the degree of saturation. What would be the unit weight and the water content if the soil had the same void ratio, but was saturated? What would be the unit weight if the soil had a water content of zero?

The moist weight of 5.56 x 103 m³ of a soil is 120.3 x 10³ kN. The moisture content and the specific gravity of the soil solids are determined in the laboratory to be 10 % and 2.6, respectively. Calculate the following: a. Moist unit weight. (Enter your answer to three significant figures.) Y = kN/m³ b. Dry unit weight. (Enter your answer to three significant figures.) Yd= kN/m³ c. Void ratio. (Enter your answer to three significant figures.) e