acline3476
acline3476
29-05-2018
Chemistry
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Please help with #9!
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mkryukova19
mkryukova19
29-05-2018
M(O)= 16 g/mol
M(H)=1 g/mol
m(O)/m(substance)
1) 16/17
2)16/18
3) 16/19
4) 32/34=16/17
1) and 4) give the same answers, and 16/17 are the greatest fraction, so greatest % oxygen by mass also.
The answers should be 1) and 4).
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