Question

Mass of one atom of an element is 6.644*10^-23gm.number of moles of atom in its 40 kg

Answer 1

Hello here is your answer by Sujeet yaduvanshi ☝☝☝☝☝☝☝☝


GIVEN That :-)
1 atom mass=6.644*10^-²³
We know that 1 gram atom=6.023*10²³






6.023x 10 23 x6.664 x 10 -23= 40.13 gm = 0.004 kg

then,

Number of atom In 40 kg=1000


that's all