2. The void ratio of a soil is 1.2. Determine the buik and effective unit weights at, first 75%, second 95%, and 100% saturation. What is the percentage error in the bulk unit weight if the soil is 95% saturated but assumed to be 100% saturated?

For a soil sample in a natural condition, void ratio (e) is 0.67, degree of saturation (S) is 75%, Gs=2.7, calculate: a) dry unit weight b) total unit weight c) saturated unit weight d) initial water content and water content at saturation. f) if the void ratio was reduced to 0.5, what will be the final specific gravity.

4. A soil sample has a bulk unit weight of 19.6 kN/m³ and a water content of 10%. The value of Gs (i.e. the specific gravity of soil grains) is 2.70. Calculate the void ratio and degree of saturation of this sample. What would be the values of unit weight and water content if the soil were fully saturated at the same void ratio?