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55. An atom of element 'X' weighs 6.4 x 10-23 g. Thenumber of gram atoms in 30 kg of it is nearly


Haris wani 16th Jul, 2019
Answer (1)
dkantm45_5902882 Student Expert 16th Jul, 2019

Hello Haris,

Here is the answer to your question. Weight of 1 atom = 6.4*10^-23 g.

No. of atoms in 30 kg.

= 30*10^3/6.4*10^-23

= 4.658*10^26 atoms

1 gram atom = no. atoms in one mole = 6.02*10^23

no. of gram atom = 4.658*10^26/6.02*10^23

= 773.75-gram atoms.

Hope this helps.


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