Total volume of soil sample = initial mass of soil / density
                                  Â
= 420 g / 1.15 g cm-3 = 365.22 cm3
Final volume of soil after oven dry = 345 g / 1.15 g
cm-3 = 300.0 cm3
Volume of water in soil = initial volume of soil – final volume
of soil after oven dry
                                  Â
= 365.22 cm3 - 300.0 cm3 = 65.22
cm3
Now,
Volumetric water content = volume occupied by water / total
volume of the soil sample
                                  Â
= 65.22 cm3 / 365.22 cm3 = 0.18
Thus, Volumetric water content of given soil sample =
0.18
