How many atoms of He are present in 52u of He??
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Answered by
4
Answer:
Atomic mass of He is 4u
one mole of He have mass = 4u
number of moles in 52 u of He = 52/4 = 13 moles
1 mole =6.022×10^23 atoms
in 13 moles, number of atom:
=13× 6.022×10^23
=78.286 × 10^23
=7.8286 × 10^24.
In 52 u of He 7.8286 × 10^24 atoms are present.
Answered by
0
Answer:
Hey mate..
Explanation:
atomic mass of He is 4u
one mole of He have mass = 4u
number of moles in 52 u of He = 52/4 = 13 moles
1 mole =6.022×10^23 atoms
in 13 moles, number of atom:
=13× 6.022×10^23
=78.286 × 10^23
=7.8286 × 10^24.
In 52 u of He 7.8286 × 10^24 atoms are present.
Hope this will helps you
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