calculate the number of molecules in 52g of He
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The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g.
Hence 1 mole of He = 4 g of He = 6.022 X 1023atoms of He
1 g of He = (6.022 X 1023) / 4 atoms of He
52 g of He = (6.022 X 1023X 52 ) / 4 atoms of He
= 7.829 X 1024 atoms of He
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Answered by
1
The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g.
Hence 1 mole of He = 4 g of He = 6.022 X 1023atoms of He
1 g of He = (6.022 X 1023) / 4 atoms of He
52 g of He = (6.022 X 1023X 52 ) / 4 atoms of He
= 7.829 X 1024 atoms of He
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