What will be the mass of (100) atoms of hydrogen? | Chemistry | SolveeIt

Question

What will be the mass of $100$ atoms of hydrogen?

$100\,g$

$1.66\times10^{-22} \,g$

$6.023 \times10^{23} \,g$

$100 \times 6.023\times10^{23} \,g$

Answer

$1.66\times10^{-22} \,g$

Explanation

Solution

Number of gram atoms of $H$ $= \frac{N}{N_{A}} = \frac{100}{6.022\times10^{23}}$ $=1.66\times10^{-22}$ Mass of hydrogen atoms $= 1 \times 1.66 \times10^{-22}$ $= 1.66 \times10^{-22}\,g$

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