jkAir5berly jkAir5berly

26-11-2016
Chemistry

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How many atoms of helium are in a balloon, which contains 0.47 moles of the gas?

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scme1702 scme1702

29-11-2016

1 mole of substance contains 6.02 x 10²³ particles
Moles of He = 0.47
Atoms = 0.47 x 6.02 x 10²³
= 2.83 x 10²³ atoms

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