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One atom of an element X weighs 6.644*10^-23gm. Calculate the no. Of g atoms in 40kg of it

One atom of an element X weighs 6.644*10^-23gm. Calculate the no. Of g atoms in 40kg of it

Grade:11

1 Answers

Vikas TU
14149 Points
6 years ago
Dear Student,
Mass of 1 particle = 6.664 x 10-23 gm 
1 Gram particle = mass of 1 mole iotas = 6.023x 1023 x mass of one molecule 
=6.023x 1023 x6.664 x 10-23= 40.13 gm = 0.004 kg 
Along these lines, 
Number of gram particles in 40 kg = 1000.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)

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