Question

(UFRGS RS) Supondo que uma molécula possui a forma de um cubo de $10^{-6}$ mm de aresta, quantas moléculas cabem em 1,0 $mm^{3}$ ?
a) $10^{6}$
b) $10^{12}$
c) $10^{18}$
d) $10^{24}$
e) $10^{36}$

Answer 1

$V=l^3\\\\V=(10^{-6})^3\\\\V=10^{-18}\\\\\\\dfrac{1~mm^3}{10^{-18}~mm^3}\\\\\boxed{10^{18}}$