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The number of atoms in 4.25 g of NH3 is approximately

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The number of atoms in 4.25 g of NH3 is approximately

(a) 4 x 1023 

(b) 2 x 1023 

(c) 1 x 1023 

(d) 6 x 1023  

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1 Answer

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Best answer

The correct option is : (d) 6 x 1023  

Explanation :

No. of molecules in 4.25 g NH3 

= 4.25/17 x 6.023 x 1023 

= 2.5 x 6.023 x 1022 

Number of atoms in 4.25 g NH3 

= 4 x 2.5 x 6.023 x 1022 

= 6.023 x 1023 

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