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Kobotan [32]
3 years ago
12

A large weather balloon filled with helium has a volume of 7.00 x 102 L at STP. Which expression should be used to find the mass

of helium in the balloon?
Chemistry
1 answer:
balandron [24]3 years ago
7 0

Answer:

mass of Helium = mole of Helium x Molarmass of Helium

Explanation:

Mole of Helium = volume of Helium/ 22.4dm^3/mol

                          = 7.00 x 10^2/22.4

                          = 31.25mol

Mass of Helium = mole of Helium x Molarmass of Helium

                           = 31.25mol x 4g/mol

                           = 125g

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