Question

Mass of 1 atom of hydrogen is

Answer 1

Question #77599, Chemistry / Other

Mass of 1 atom of hydrogen is

Solution:

From the periodic table we know that mass of 1 mol of hydrogen atoms is $1.00794\ \mathrm{g}$. 1 mole of atoms is $6.022 \times 10^{23}$ atoms. Now, calculate:

$6.022 \times 10^{23}\ \mathrm{H}$ atoms weight $1.00794\ \mathrm{g}$

1 H atoms weight m grams.

$$m = \frac{1.00794\ \mathrm{g} \times 1\ \mathrm{atom}}{6.022 \times 10^{23}\ \mathrm{atoms}} = 0.1674 \times 10^{-23}\ \mathrm{g} = 1.674 \times 10^{-24}\ \mathrm{g}$$

Answer:

$1.674 \times 10^{-24}\ \mathrm{g}$

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