is relative atomic mass of air =29
if not , what is it?
relative atomic mass of air
2007-04-21 5:27 am
回答 (1)
2007-04-21 6:01 am
✔ 最佳答案
air is 80% N2 and 20% O2100 mole of air has mass 80X(14X2) + 20X(16X2) = 2880
on the average, 1 mole air has mass = 2880 / 100 = 28.8 g
收錄日期: 2021-04-25 16:37:00
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https://hk.answers.yahoo.com/question/index?qid=20070420000051KK04083