air contains 80% nitrogen and 20% oxygen calculate ffxhpzquym average molecular mass of air .note=this percentage is given by volume percent.air contains 80% nitrogen and 20% oxygen calculate average molecular mass of air .note=this percentage is given by volume percent.
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Answer:
80% of N2 and 20% of O2 in 100 ml
80g N2 = 80/14 moles
=5.7 moles
20 g of O2 = 20/32 moles
= 0.625 moles
Total moles in mixture - 6.325 moles
6.325 moles = 100 gm
1 mole = molar mass
= 1×100 / 6.325
= 15.18 g ✅
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Verified answer
Answer:
N2=80%
O2=20%
molar mass
80% of N2 and 20% of O2 means,
80g of N2 and 20g of 02 in 100ml
80g N2 = 80/14 moles
= 5.7 moles
20g O2 = 20/32
=0.625 moles
total moles in mixture=6.325 moles
6.325 moles= 100gm
1 moles = molar mass
1×100/6.325= 15.18 g
Explanation:
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