Answer
To determine the number of Hydrogen atoms:
$N=\frac{4cm}{0.1nm}$
$N=\frac{4\times 10^{-2}m}{0.1\times 10^{-9}m}$
$N=\frac{4\times 10^{-2}m}{1\times 10^{-10}m}$
$N=4\times 10^8atoms$
Work Step by Step
To determine the number of Hydrogen atoms:
$N=\frac{4cm}{0.1nm}$
$N=\frac{4\times 10^{-2}m}{0.1\times 10^{-9}m}$
$N=\frac{4\times 10^{-2}m}{1\times 10^{-10}m}$
$N=4\times 10^8atoms$
