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Chemistry
10 July, 16:34
What is the volume of 43.7 g of helium at stp?
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Yosef Davies
10 July, 16:59
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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.
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