Answer
$1.21$ x $10^{28}$ m$^{3}$
Work Step by Step
We find:
$a = 2R\sqrt{2}$
$V = a^{3} = (2R\sqrt{2})^3 = 16\sqrt{2}R^{3}$
$R = .175*10^{-9}$ m
$V = 1.21*10^{-28}$ m$^3$
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