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Question: > What will be the mass of 100 atoms of hydrogen? > >...

What will be the mass of 100 atoms of hydrogen?

A

100g100g

B

1.66×10−221.66 \times 10^{- 22}

C

6.023×1023g6.023 \times 10^{23}g

D

100×6.023×1023g100 \times 6.023 \times 10^{23}g

Answer

1.66×10−221.66 \times 10^{- 22}

Explanation

Solution

(2) : Number of gram atoms of H=NNA=1006.022×1023H = \frac{N}{N_{A}} = \frac{100}{6.022 \times 10^{23}}

=1.66×10−22= 1.66 \times 10^{- 22}

Mass of hydrogen atoms = 1×1.66×10−221 \times 1.66 \times 10^{- 22}

=1.66×10−221.66 \times 10^{- 22}