Răspuns :
Mxilen=MC8H10=12*8+10=106g
Mnaftalina=MC10H8=12*10+8=128g
notam raportul molar xilen:naftalina=x:y
106x+128y..........100%
10x+8y..............7,692%
1000x+800y=815,352x+984,576y
(1000-815,352)x=(984,576-800)y
184,648x=184,576y => x≈y => x:y=1:1
106x+128x=234x=46,8 => x=0,2moli
voi incerca sa scriu ecuatiile
1mol...............3*22,4L..............................................148g
C6H4(CH3)2 + 3O2 -2H2O -> C6H4(COOH)2 -> C6H4(CO-O-CO) + H2O
0,2moli.............z=?.....................................................t=?
1mol.....4,5*22,4L...........................................................148g
C10H8 + 4,5O2 -2CO2 - H2O -> C6H4(COOH)2 -> C6H4(CO-O-CO) + H2O
0,2moli....m=?.................................................................n=?x
z=0,2*3*22,4=13,44L O2
m=0,2*4,5*22,4=20,16L O2
VO2=13,44+20,16=33,6L O2
t=0,2*148=29,6g anhidrida
n=0,2*148=29,6g anhidrida
t+n=59,2g anhidrida
notam raportul molar xilen:naftalina=x:y
106x+128y..........100%
10x+8y..............7,692%
1000x+800y=815,352x+984,576y
(1000-815,352)x=(984,576-800)y
184,648x=184,576y => x≈y => x:y=1:1
106x+128x=234x=46,8 => x=0,2moli
voi incerca sa scriu ecuatiile
1mol...............3*22,4L..............................................148g
C6H4(CH3)2 + 3O2 -2H2O -> C6H4(COOH)2 -> C6H4(CO-O-CO) + H2O
0,2moli.............z=?.....................................................t=?
1mol.....4,5*22,4L...........................................................148g
C10H8 + 4,5O2 -2CO2 - H2O -> C6H4(COOH)2 -> C6H4(CO-O-CO) + H2O
0,2moli....m=?.................................................................n=?x
z=0,2*3*22,4=13,44L O2
m=0,2*4,5*22,4=20,16L O2
VO2=13,44+20,16=33,6L O2
t=0,2*148=29,6g anhidrida
n=0,2*148=29,6g anhidrida
t+n=59,2g anhidrida