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2. MC2H50H=2x12+6+16=46u
1.
tlen:
46u - 100%
16u-x
x=16ux100%/46u=34.78%
wodor:
46u - 100%
6u - x
x=6x100%/46=13.04%
wegiel
46u - 100%
24u - x
x=24x100%/46=52.17%
M(C2H5OH)=2*12 + 6*1 + 16=24+6+26=46
%C
100%--46g
x------24g
x=52,17%
%H : .
100%--46g
x------6g
x=13,04%
%O : 100%-52,17%-13,04%=34,79%
2. Podaj masę cząsteczkową etanolu
M(C2H5OH)=2*12 + 6*1 + 16=24+6+26=46u