M c6 the ld tirip di6m, cflng c6 th6 tr<h6ng
Theo b6o todn nguy6n t OC vd bio toirn electron, ta c
lrrroo, * l?cu:oH,iu I llazo - )naz: 0,045
I
1 ncu:ouphandtrg = ffH2oraothanh
I
l2nrror, + 4nHq1o = r?ne = 0.09
TOAN H9C
l?Hcoott * l?Cu:ogprr*Lrng * tXOrgrau = 01045
--J
0,04
2ntgnn * 4nHc$: 0,09
.* Irn.oon :0.005lrHqHe :0,02
+1'
f ran,o, onrn ,ing = trHCooH * llucso = 0,025) Hohôi1,5acHjoH : +0-:,5 lo0"/o = 62.5% ) Hohôi1,5acHjoH : +0-:,5 lo0"/o = 62.5%
0,04 D6p an B.
*Thi dU 8. Itdn họp X gim m6r andehit drtn chuc, mach hd'vir m6t ankin (phdn tr,r ankin co
cirng sii ngyyAn túHnhung it
,hon mdt ngwAn nr C so vói phdn ttr andehit). Ddt chLiy hodn bdn 1
mal hdn hW X thu dtrqr:2,4 mol CO2 vd 1 mol ntróc. N€u cho 1 mol hon hqp X tac dqng voi dung dich AgNOTA{H: thi khoi ltxTttg kdt tt)a thu dtroc:ld Ạ308 gam. C.230,4 gam. 8.301,2 gam. D. 144 gam. IucHo
Sod6ph6nimg: CHro" tol'''' IHCOOH
-=-n- óo4mol lHou[cu,ou*,
(D0 thi rhtt Dai hoc ldn I - Trwdng T'HPT c:hu1,€n Qui5c Hpc Hu€, ndm hpc 201i - 2014).
Htfing đn gidl Tt gla thi6t, suy ra:
I .- 2nuzo - n l'trr- * -' ^ fcH=cH 1 nro, "n-^gomt*=c-cHo lnir:-=zt* l- -' t|x
Theo gii ttriCt vi bio todn nguy6n t6 C,ta c6 :
)rrr=r, *r611:6-qH6 =l
L2r.r=., +3rcs=c-cus =t'tqs2 =2,4
lnsH=1H :0,6
-<'
['.r=.-.ro : ó4
Theo b6o todn nguy6n tO C vd bio toirnelectron, ta c6 electron, ta c6 ( | fices=cag : Ỉcu-cu :0.6 I ,.o*--.-.ooNH4 : Ỉ6s:6'-cuo : 0,4 I [ro, = 2ffcH=c'-c'Hs : 0.8 ) tTlkdttia: 0,4.194 + 0,6.240 + 0,8'108 gw- \-/.J \--w-
,CAg=C-COONH4 m(tr}=CAg mAE
:308gam.
D6p rinẠ
eu rdr
l. Chia 156,8 gam h6n hqtp X g6m FeO, Fe3Oa,
Fe2O3 thanh hai phdn bing nhaụ pnan t tac dgng h6t voi dung dich HCI du, thu dugc 155,4
gam mu6i ktran. Phan 2 ac &qng vria tltr voi
dung dich Y chtra HCl, IIzSƠ lodng, thu du-ọ c 167,9 garr- mu6i khan. 56 mol cua HCI trong