Answer $2\mathrm{.}2$ through $2\mathrm{.}4$

$2\mathrm{.}2$ In its natural state, a moist soil has a volume of $0\mathrm{.}25f{t}^3$ and weighs $30lb.$ The oven$-$dry

weight of the soil is $26\mathrm{.}1lb.$ If $G_s=2\mathrm{.}63,$ calculate the moisture content, moist unit weight,

dry unit weight, void ratio, porosity, and degree of saturation.

$2\mathrm{.}9$ For a given soil, the following are given: $G_s=2\mathrm{.}67$; moist unit weight, $=112l\frac{b}{f}{t}^3$; and

moisture content, $w=10\mathrm{.}8\%.$ Determine:

a$.$ Dry unit weight

b$.$ Void ratio

c$.$ Porosity

d$.$ Degree of saturation

$2\mathrm{.}2$ The saturated unit weight of a soil is $20\mathrm{.}1k\frac{N}{m^3}$ at a mois$-$

ture content of $22\%.$ Determine $($a$)$ the dry unit weight and

$($b$)$ the specific gravity of soil solids, $G_s.$

$2\mathrm{.}4$ A saturated soil specimen has $w=36\%$ and ${}_d=13\mathrm{.}5k\frac{N}{m^3}.$

Determine the specimen's $($a$)$ void ratio, $($b$)$ porosity,

$($c$)$ specific gravity of soil solids, and $($d$)$ saturated unit

weight $($in $k\frac{N}{m^3}).$