just write the eqtn: 4Al + 3O2 = 2Al2O3....
what is the mass of oxygen that will react with 21 gm of Al?
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3 Answers
Aditya Bhutra
·2011-09-06 02:52:32
continuing from debosmit's post,
4.moles of Al = 3.moles of O2
or, 4*21/27 = 3*x/32
or x= 128*7/27 = 33.18 gm