Answer
a) $451kg$
Work Step by Step
From table A-5:
$\upsilon=0.001061\frac{m^3}{kg}+0.75*0.88578\frac{m^3}{kg}=0.665396\frac{m^3}{kg}$
$m_{t}=\frac{300m^3}{0.665396\frac{m^3}{kg}}=451kg$
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