What is the volume of 43.7 g of helium at stp?

Question

Chemistry

Martin Gentry

19 June, 16:25

What is the volume of 43.7 g of helium at stp?

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Answers (1)

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Zoe · Answer 1

Answer is: volume of helium is 244.72 liters.

m (He) = 43.7 g.

n (He) = m (He) : M (He).

n (He) = 43.7 g : 4 g/mol.

n (He) = 10.925 mol.

V (He) = n (He) · n (He).

V (He) = 10.925 mol · 22.4 L/mol.

V (He) = 244.72 L.

Vm - molar volume at STP.

n - amount of substance.