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How many atoms is 50 g of He?
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How many atoms is 50 g of He?
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Jul 27, 2017
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How many atoms is 50 g of He?
Chemistry
high-school
Maniraj Murugan
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Maniraj Murugan
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Atomic
mass He = 4.002 u.m.a
4.002 g --------------- 6.02x10²³ atoms
50 g ------------------ ? atoms
50 x ( 6.02x10²³) / 4.002
= 3.01x10²⁵ / 4.002
=
7.52x10²⁴ atoms of He
Tolsto
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Jul 30, 2017
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Tolsto
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