An ASTM D $854$ test was done on a sand. The data are shown below. Calculate the $($a$)$ moisture content, $($b$)$ specific gravity and $($c$)$ bulk unit weight of the soil.mass of pycnometer $=40\mathrm{.}1$ gramsmass of pycnometer and dry soil $=65\mathrm{.}8$ gramsmass of pycnometer, dry soil and water $=154\mathrm{.}5$ gramsmass of pycnometer and water $=138\mathrm{.}5$ grams