}ĿXAlPͨһNVVѬxˮa(chn)߶PH3wc-132߀ԭԏl(wi)ȫ˜Ҏ(gu)ZʳPH3Ӌĺ^0.05mgkg-1rZʳ|(zh)ϸ֮Zʳ|(zh)ϸijW(xu)dȤСMͬW(xu)ͨ^зZʳКﺬMо
̡
bbPH3Įa(chn)cD(zhun)KMnO4Һc˜Һζ
bá
֪ C ʢ 100 gԭZE ʢ 20.00 mL 1.1310-3 mol L-1KMnO4ҺH2SO4ữ)ՈشІ}
1xDQ____________________________
2Bʢнԛ]ʳĉAҺտ՚еO2ֹbCɵPH3tAʢbKMnO4Һ_________________________
3֪MnO4-߀ԭMn2+0.1mol PH3ǡñ0.16mol KMnO4tPH3Įa(chn)__________Eаl(f)(yng)xӷʽ_________________________
4ռEҺˮϡ250mLȡ25.00mLFƿ5.010-4mol L-1Na2SO3˜ҺζʣKMnO4Һ
Όģ | 1 | 2 | 3 |
mL | 11.02 | 11.30 | 10.98 |
ζ_KcĬF(xin)ǣ________________________________
(sh)(j)̎Na2SO3˜Һ____mLtԓԭZPH3Ӌĺ______________________mg kg-1
Cз(yng)ȫӛͨ՚⼴MУ4еĵζtNa2SO3˜Һwe____________xƫƫС׃
𰸡 ֱ() ȥ՚е߀ԭԚwӰ푌Y(ji) H3PO4ᣩ 5PH3+8MnO4-+24H+==5H3PO4+8Mn2++12H2O FƿҺɫɫǡ׃?yu)oɫҰ犃(ni)׃ɫ 11.00 0.13 0.1275 ƫ
(1)bDʴ𰸞飺
(2)(j)bÈDbеԇxДiҺǏտ՚е߀ԭԚwԛ]ʳȺ͉A(yng)ٺⷴ(yng)⣻PH3ȼʴ𰸞飺ȥ՚е߀ԭԚwӰ푌Y(ji)
(3)PH3Ըiᣬi⛱߀ԭixY(ji)غ늺غԭغƽõxӷʽ飺5PH3+8MnO4-+24H+=5H3PO4+8Mn2++12H2Oʴ𰸞飺H3PO4()5PH3+8MnO4-+24H+=5H3PO4+8Mn2++12H2O
(4)(j)ζ(yng)2KMnO4+5Na2SO3+3H2SO4=2MnSO4+K2SO4+5Na2SO4+3H2OПoxָʾFƿҺɫɫǡ׃?yu)oɫҰ犃(ni)׃ɫʾ_˵ζKcʴ𰸞飺FƿҺɫɫǡ׃?yu)oɫҰ犃(ni)׃ɫ
ռEҺˮϡ250mLȡ25.00mLFƿÝȞ510-4mol/L Na2SO3˜ҺζʣKMnO4ҺNa2SO3˜Һ11.00mL(j)ζ(yng)2KMnO4+5Na2SO3+3H2SO4=2MnSO4+K2SO4+5Na2SO4+3H2O2KMnO45Na2SO3δ(yng)ĸi|(zh)=0.0110L510-4mol/L=2.210-5molcPH3(yng)ĸi|(zh)=1.1310-3mol/L0.020L-2.210-5mol=6.010-7mol(j)(yng) 5PH3+8KMnO4+12H2SO4=5H3PO4+8MnSO4+4K2SO4+12H2OõP(gun)ϵ飺5PH38KMnO4ӋõPH3|(zh)=6.010-7mol
=3.7510-7moltPH3|(zh)֔(sh)=
=0.1275mg/kg0.13mg/kgԓԭZ|(zh)ϸʴ𰸞飺11.000.13
ۜʴ_yPH3ĺҪøiҺȫa(chn)^`ͨ՚DZCPH3ȫCз(yng)ȫӛͨ՚⼴M(4)еĵζtʣĸiƫ࣬ζNa2SO3˜Һweƫʴ𰸞飺ƫ
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}ĿSȵļӴl(f)չȼ늳܇ɞоn}Dijn}MO(sh)ӋҺwȼ늳ʾDP(gun)_
A. ԓ늳صă(yu)cDza(chn)ȾwҺwȼϱڔy
B. 늳(ni)ʹõxӽQĤOH-(jng)QĤؓO
C. ԓȼ늳ص늘Oϲö{̼ϣDĿ|e
D. ԓ늳ͨN2H4늘OOl(f)늘O(yng)ʽN2H4+4OH--4e-=N2+4H2O
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}Ŀ\(ZnS)һNҪĻԭyˮɟ\ďU\ȡ乤ˇDʾ
1\ҵĽȡɲõķ____________(̖)
ĥ ڶνȡ ߜض ܼӉ ݔ
2EÞVе|(zh)_______________(W(xu)ʽ)
3EпɵCd|(zh)µs|(zh)ԇX(yng)____________
4E߀ԻNa2SO4ȡNa2S
ٙzZnSwǷϴɃķ_________________
Na2Sɵ|(zh)Na2SO4CH4ڸߜءlȡW(xu)(yng)ʽ_______________________________
5EZnCO3bmolECddmol,õVL|(zh)Ȟcmol/LNa2SO4ҺtՓ\к\Ԫص|(zh)____________
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}ĿȣClO2ǘOˮҲcˮl(f)W(xu)(yng)SGɫwc 11̎UˮijСMڌ̽ ClO2 c Na2S ķ(yng)شІ}
1ClO2 Ƃ
֪SO22NaClO3H2SO42ClO22NaHSO4
b A з(yng)ĻW(xu)ʽ____________
ռ ClO2xψDеbB a________________Сĸʾ
b D __________________
2ClO2 c Na2S ķ(yng)
ռ ClO2 N2 ϡ䷀(wn)mϡጺ ClO2 ͨψDʾbгַ(yng)õoɫҺһΕrgͨ^Ќ̽ I з(yng)Įa(chn)
_________________________________
ClO2 c Na2S (yng)xӷʽ____________̎UˮrClO2 Cl2 ă(yu)c____________Όһl
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}ĿNAʾ٤_(sh)ֵД_ǣ
A.س16 g O3ԭӔ(sh)ĿNA
B.1 molL1CaCl2ҺкеCl(sh)Ŀ2NA
C.5.6 g Fec}ᷴ(yng)ʧȥӔ(sh)Ŀ0.3NA
D.˜ʠr£22.4 LеķӔ(sh)ĿNA
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}ĿһN͵ľGɫԴһNҪĻԭ|(zh)C Ӌcˮⷴ(yng)ȡH2һNͺЧʵH2ԓɚ⻯tH2ȼtCaOɲ(gu)⻯t漰ķ(yng)飺
I.Cs+H2OgCOg+H2g K1
.COg+H2OgCO2g+H2g K2
.CaOs+CO2gCaCO3s K3
1ԓˇH2(yng)ɱʾC(s)+2H2O(g)+CaO(s)CaCO3(s)+2H2(g)䷴(yng)ƽⳣ(sh)K=_______________K1K2K3Ĵ(sh)ʽʾ2L]мһC(s)H2O(g)CaO(s)f(yng)_ƽB(ti)__________
a(ni)|(zh)׃ bH2cH2Og|(zh)֮Ȳ׃
cϚwܶȲ׃ dγ a mol H-HIͬr 2 amol H-OI
2ڷ(yng)ͬضȺ͉H2a(chn)Ӱ±
ض | p1/Mpa | p2/Mpa |
500 | 45.6% | 51.3% |
700 | 67.8% | 71.6% |
ɱД(sh)(j)Дࣺp1 ______ p2
ЈD__________
3֪(yng)H= 41.1 kJ/mol COOHHHIܷքe803kJ/mol464 kJ/mol436 kJ/molt CO̼IIܞ___________ kJ/mol
4ڷ(yng)ƽrٳCO2ʹԭ2tƽ_____________(yng)淴(yng)ƄƽCO2_________׃׃С׃
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}ĿABCDEԭ(sh)NԪAԭ(sh)BDԭ(sh)֮͵1/4CԪص߃rˮһNЏAͱDԪصăɷNҊҺͶBԪصăɷNҊͬخw0.005mol/LҺpH=2 ֮gD(zhun)P(gun)ϵDʾַ(yng)ʡԣД_
A. CDԪγɻٹr
B. ADքecBԪγɵĻﶼǴȾ
C. CDĺxӾܴMˮx
D. EˮԴDˮ
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}ĿϩͪCH2=C=OһlcĻl(f)ӳɷ(yng)(yng)ɱʾ飺 ϩͪһl¿cԇӳɣa(chn)ﲻ_ǣ
A.cHClӳCH3COCl
B.cH2OӳCH3COOH
C.cCH3OHӳCH3COCH2OH
D.cCH3COOHӳ
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