1) if 1 mole of element x weighs 16 g what is the mass of 1 atom of element x ?
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Answer:
Gram atomic mass = mass of 1 mole atoms× mass of one atom
=(6.022×10
23
)×(6.664×10
−23
)=40.01gm
Gram atoms=moles=mass/molarmass=40000/40=1000
∴ The number of gram atoms in 40kg = 1000
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