chuyên Đề khu oxit kim loai
TRANSCRIPT
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7/23/2019 Chuyn Khu Oxit Kim Loai
1/5
Chuyn : KH OXIT KIM LOI (Cht kh : Al, CO, H2.)
DNG 1: KH OXIT KIM LOI BNG CHT KH CO, H2
+ nh lut BTKL p !n" #h$ %&' t$n n& l&)
*$'t '* l$-' +*CO.*#h/t 01n 3u ph4n 5n"+*CO2
*$'t '* l$-' +*H2.*#h/t 01n 3u ph4n 5n"+*H2O
T0$n" 67 ) 8 9: *$l H2lu;n %u l/ ? CO(H2@ 6A h h$&n t$&n $'t th #h/t 01n thu 6?D# l& '* l$-'E+ N>u #h$ tF tF lun" h CO (H2@ u3 :n" 5 #h53 $'t '* l$-' th ph4' Jt tFn" "'3' 6$-n ph4n5n", #h/t 01n thu 6?D# 3u ph4n 5n" l& hn hDp ## 4n ph*E
) P2OQ+ CO PQOR+ CO2PQOR+ CO PO + CO2
PO + CO P + CO2Kh' 67 #h/t 01n thu 6?D# 3u ph4n 5n" #7 thA l& hn hDp ## 4n ph*) P, PO, P QOR, P2OQ?CSu ) Cho kh CO (d) i vo ng s nung nng ng hn hp X gm AlO!" #gO" $%!O&" CuO 'hu h' *+n ,- Cho , vo dung d.h /0O1 (d)" khu2 k3" 'h2 4n l5i ph6n kh7ng '0n 8- 9i: s;
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7/23/2019 Chuyn Khu Oxit Kim Loai
2/5
CSu ZP h; hon 'on Eg0m m' o=i' s+' JKng kh CO 'hu N"&E& g0m $% -ho JiU' Ca>a 0 o=i's+' PA- $%O! Q- $%!O& C- $%=O2 R- $%OCSu [P h; hon 'on 0 g0m m' o=i' s+' X J]ng kh CO H nhiY' 0o *i ho '0n lng $% '5o 'hnh'*ong dd 1LO&b nng 'hc 'hu TV li' kh LO- /Uu 0 g0m o=i' 'ng BCi =ng =D4h /xit 4I kh3 9/' ./ thJ 4I kh nKng hn hp Y 4h/ (Al "%&+#$) ho!4 (Al"%&+ #$ + Al =) ho!4 (Al"%&+ #$ + oxit kim loi =)
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7/23/2019 Chuyn Khu Oxit Kim Loai
3/5
- , phn ng x' ./ khng ho0n to0n1 hn hp Y gLm Al"%&1 #$1 Al = B0 #$"%&=
- Thng MN =>ng:+ ODnh lt 9o to0n khi lng: mhhXQ mhhY+ ODnh lt 9o to0n ng'Rn t (mol ng'Rn tN): nAl (X)Q nAl (Y)@ n#$ (X)Q n#$ (Y)@ n% (X)Q n% (Y)
CSu ) >h:n ng ho< hj =:2 *0 '*ong '*[ng hp no dWi 2 h;n" 'hu lo5i ph:n ng nhiY' nh7m
UE Al '4 kh3 U%"(=) B0o =ng =D4h Y1 th74 & g/m k,t t6/; i t.D 46/ m l0:
A; *Z1 g/m [; Z\1] g/m C. 48,3 gam ^; &1\g/m
CSu Q) Th_4 hin phn ng nhit nhm hn hp X gLm Al B0 m`t oxit Mt #$x%' (t.ong 7iG kinkhng 4I khng kh3) th 74 "1&Z g/m 4h5t .n Y; Ha/ t/n Y t.ong =ng =D4h /%H (=) th5'4I b1* l3t kh3 H"(W 7kt4) thot ./ B0 4an li phcn khng t/n V; Ha/ t/n de" lng V 9fng =ng=D4h H"S%*7!41 nIng (=) th5' 4I d&1** l3t kh3 S%"(W 7kt4) thot ./; [i,t 44 phn ng x' ./ho0n to0n; hi lng Al"%&t.ong Y B0 4ng th4 oxit Mt lcn lt l0:
A; *]1b g/m B0 #$&%* [; *Z1 g/m B0 #$"%& C. 40,8 gam v Fe2O3 ^; *Z1 g/m B0 #$&%*
CSu R) T.`n Z1* g/m 9`t Al BCi d\1* g/m 9`t #$&%*.Li ti,n h0nh phn ng nhit nhm (t.ong 7iGkin khng 4I khng kh3); i MN 4h x' ./ phn ng khN #$ &%*th0nh #$; Ha/ t/n ho0n to0n4h5t .n M/ phn ng 9fng =ng =D4h H "S%*long (=) th 74 Z1&\ l3t kh3 H"(W 7kt4); HiM5t phn ng nhit nhm B0 M mol H"S%*7 phn ng l0:
A; \Z j B0 ]1Z* mol [; b] j B0 ]1Z" mol U; \Z j B0 ]1Z"mol D. 80 % v 0,54 molCSu V: ng nIng m g/m hn hp Al B0 #$"%&(t.ong 7iG kin khng 4I khng kh3) 7,n khi phnng x' ./ ho0n to0n 1 th 74 hn hp .n Y; Uhi/ Y th0nh h/i phcn 9fng nh/: Phn 1: t4 =>ng BCi =ng =D4h H"S%*long (=) Minh ./ &1]b l3t kh3 H"(W 7kt4) Phn 2: t4 =>ng BCi =ng =D4h /%H (=) Minh ./ ]1b* l3t kh3 H"(W 7kt4) i t.D 46/ m l0:. 22,!5 gam [; "d1*] g/m U; "1*] g/m ^; "1*&g/m
CSu W) hi ho &E"& g0m hn hp X gm $%O!" C*O!v AlO!'
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7/23/2019 Chuyn Khu Oxit Kim Loai
4/5
>h6n E '
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7/23/2019 Chuyn Khu Oxit Kim Loai
5/5 F