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180g C6H12O6-----92g C2H5OH
30g C6H12O6----------x g C2H5OH
x=15,3 g
Wzór:
Cp= ms/mr *100%
Cp= 15,3g/ 270g+15,3g*100% = 5,36%
8. etanol- C2H5OH
Stosunek masowy:
C:H:O=24:6:16=12:3:8
mC2H5OH=2*12u+6*1u+16u=46u
24u-x%
46u-100%
x=52,17%C
6u-x%
46u-100%
x=13,04%H
100%-(52,17%+13,04%)=34,79%O
C6H12O6 ----> 2C2H5OH + 2CO2 dwutlenek węgla ucieka z roztworu
180g glukozy ------------92g C2H5OH
30g ---------------------------x
x=15,3 g
Cp= ms/mr *100%
Cp= 15,3g/ 270g+15,3g*100% = 5,36%
zad.2
C2H5OH
mC = 24g
mO = 16g
mH= 6g
mC:mO:mH = 24:16:6= 12:8:3
46g -------------100%
24g -----------x
x=52,2 % C
46 --------------100%
16 ---------------x
x=34,8% O
100-34,8-52,2=13% H