Question

how many grams does an atom of hydrogen weight?

Answer 1

Answer:

hydrogen has an atomic weight of 1.008grams/mole which means 1 mole of hydrogen weigh 1.008grams

Answer 2

Explanation:

‘1 mole of Hydrogen’ at S.T.P. contains 'Avogadro Number of atoms' which is equal to $6.023 \times 10^{23}$

The 'atomic weight' of Hydrogen is 1, which means that ‘1 mole of Hydrogen’ weighs 1 gram.

This means $6.023 \times 10^{23}$ atoms of hydrogen weighs 1 gram.

Thus, According to the question,

Weight of $6.023 \times 10^{23}$ = 1 gram

Weight of ‘1 atom of Hydrogen’  $=\frac{1}{6.023 \times 10^{23}} gram$

                                                       $=0.16603 \times 10^{-23}$

                                                     $=1.6603 \times 10^{-24}$ gram