How do you determine the degree of saturation?

The degree of saturation of the soil is obtained from the field and is not computed directly by testing the soil in the laboratory. It is computed indirectly using value of water content, specific gravity and void ratio. The relationship between saturation, moisture content and ratio of voids are as expressed below.   (from google)

Explanation:

there ya go   :)

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"