- Cho h5n hdp khi c6n lai di qua dungdich brom d\i thi C2H4 bj giOf lai c6n cdc kh
c)Thetich etan sinh ra thetich H, c6n lai: * 'i;
• Phan 3: nhh = - ' - ^ = 0,8 (mol) ' 22,4 22,4
Goi X (mol) Ih s6 mol H2 trong 0,8 mol hon hdp ban diụ , ., , j„ ,, i;
Mhh = 4.2 = 8 — 2.x + 26(0,8-x) „ n f , — 2.x + 26(0,8-x) „ n f , Mhh= ^ = 8 =>x = 0,6(mol) , I s j i f u f • H ^ ^ . . . M . . - . , .j..f . ' "CzHzM =0.2 (mol) - C2H2 + H2 ^'-'"^ > C2H4 , • 0: = m 00! 3 o;':' •, 0,02 <- ,; 0,02 (mol) ,, ; ^ , A-; ^.H-^Fj: tfi6« 8 : ' t, i ' i - . •.• C2H2 + 2 H 2- ^ ^ ^ J ^ C z H ^ .. ('rtr^V:';j-Mj: Â^^^ y - + 2y -> y ( m o l ) • - • ••.•^ ' ..
Goi y l£k so mol etan tao thSnh.
nc2H2 P t f . * o e u n = y = 0.2 - (0.01 + 0.02) = 0.17 (mol) => n g u n = 0,17 (mol) So mol H2c6ni,i = 0.6 - (0.02 + 2.0.17) = 0.24 mol So mol H2c6ni,i = 0.6 - (0.02 + 2.0.17) = 0.24 mol
Phan dgng va phtong ph^p giai H6a hpc 11 HOu CO - Pfl Xufln Hung
B a i 11. D o t chdy hôn tôn lOOcm^ h o n hdp A g o m : CjHfi, C 2 H 4 , C2H2 va H2 t h i thu dUdc 90cm^ CO2. N u n g n d n g 1 0 0 c m ' A c6 sU h i $ n d i e n c u a P d t h i t h u diTdc 8 0 c m ' h o n h d p k h i B . N e u cho B t i e p t y c qua N i , t " t h i t h u dUdc chat d u y nhat.
T i m % cdc chat trong h o n hdp. iiOir;
Gidi ...3 o-g/' )
Dat lOOcm' h h A g o m : fCjUf,: a f 1
• a + b + c + d = 100 ( c m ' ) H2 : d ( c m ' ) ,,>;• , , , ^ . . 3 ^ ^ H ^ J " C d c p t p t f : '••^ ý^'''-'' ^'-'^ -'"^ • C 2 H 6 + - O 2 ^ 2CO2 + 3H2O * M') » , „ :(warn d . a 4-- • d a 2a " • ( m o l ) V-
C 2 H 4 + 3O2 2CO2 + 2H2O , ,
b 2 b (ttidl)
C2H2 + - O 2 - > 2CO2 + H2O ,
C /.c/^/rS:^;,*,. 2c ( m o l ) ^, ' ^ , r
d ' ^ d , ( m o l ) ,^i!om; a j ) - " ~ - ; .
L i m S • H2 cOng chdy trong O x i , san p h i m \h H2Ọ '
V c o j = 2(a + b + c) = 9 0 ( c m ' ) = > a + b + c = 45 ( c m ' ) C ^ « ^ ^ ^ . = > d = 1 0 0 - 4 5 = 5 5 ( c m ' ) ( 1 ) " " ^,14
• T N 2 : x u c tac Pd, t"C t h i m p t l i 6 n k e t 7t b i diJt, san p h a m c p n g \h a n k e n ! ' ' '
C2H2 + H2 ''''•'"^ >C2H4
c - » c ( c m ) ^ "
T h I t i c h h S n h d p g i d m : • ' ^ i . ^ ^ ^ l ' l Vkhigun, = 2 c - c = c = 1 0 0 - 8 0 = 2 0 ( c m ' ) ( 2 ) - 3 -» -^ii>