Question

How many grams of does an atom of hydrogen weight?

Answer 1

A gram molecule of Hydrogen

1. A gram molecule is the number of molecules present in one mole of that substance, instead of the atoms.
2. Weight of one mole of Hydrogen=$1.008\mathrm{g}$
3. Weight of $6.022\times {10}^{23}$ atoms of Hydrogen= $1.008\mathrm{g}$
4. As, $6.022\times {10}^{23}$ atoms of Hydrogen weighs$1.008\mathrm{g}$.
5. $1$ atom of Hydrogen weighs=

$\frac{1}{6.022\times {10}^{23}}$

$=1.66058\times {10}^{-24}\mathrm{grams}$

Therefore, The weight of $1$atom of Hydrogen is $1.66058\times {10}^{-24}\mathrm{grams}$.