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3 years ago

How many atoms is 50 g of He?

1 answer:

6 0

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

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nikdorinn [45]

Answer:

Option ( 1 )

Explanation:

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____________________________________________________

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3 years ago

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