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  • Calculate the number of atoms (iii) 52 g of He.

1.33    Calculate the number of atoms

     (iii) 52 g of He.

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As 1 mole of He weights 4g and contains 6.022\times10^{23} atoms.

Therefore, 52g will contain \frac{52}{4}moles = 13\ moles .

Hence, the number of atoms will be 13\times6.022\times10^{23}\ atoms.

\Rightarrow 7.8286\times10^{24}\ atoms.

 

Posted by

Divya Prakash Singh

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