}ĿXAlPͨһNVVѬx(chng)ˮ(hu)a(chn)߶PH3wc(din)-132߀ԭԏ(qing)l(wi)ȫ(bio)(zhn)Ҏ(gu)(dng)ZʳPH3Ӌ(j)ĺ^(gu)0.05mgkg-1r(sh)Zʳ|(zh)ϸ֮Zʳ|(zh)ϸijW(xu)dȤСMͬW(xu)ͨ^(gu)з(du)ZʳКﺬM(jn)о
̡
bbPH3Įa(chn)cD(zhun)KMnO4Һc(bio)(zhn)Һζ
(sh)(yn)bá
֪ C ʢ 100 gԭZE ʢ 20.00 mL 1.1310-3 mol L-1KMnO4ҺH2SO4ữ)Ո(qng)شІ(wn)}
1xDQ____________________________
2Bʢнԛ](mi)ʳĉAҺտ՚еO2ֹbCɵPH3tAʢbKMnO4Һ_________________________
3֪MnO4-߀ԭMn2+0.1mol PH3ǡñ0.16mol KMnO4tPH3Įa(chn)__________Eаl(f)(yng)xӷʽ_________________________
4ռEҺˮϡ250mLȡ25.00mLFƿ5.010-4mol L-1Na2SO3(bio)(zhn)ҺζʣKMnO4Һ
Ό(sh)(yn)ģ(bio) | 1 | 2 | 3 |
mL | 11.02 | 11.30 | 10.98 |
ζ_(d)Kc(din)ĬF(xin)ǣ________________________________
(sh)(j)̎Na2SO3(bio)(zhn)Һ____mLtԓԭZPH3Ӌ(j)ĺ______________________mg kg-1
Cз(yng)ȫӛͨ՚⼴M(jn)У4еĵζtNa2SO3(bio)(zhn)Һwe____________xƫƫС׃
𰸡 ֱ() ȥ՚е߀ԭԚwӰ푌(sh)(yn)Y(ji) H3PO4ᣩ 5PH3+8MnO4-+24H+==5H3PO4+8Mn2++12H2O FƿҺɫɫǡ׃?yu)o(w)ɫҰ犃(ni)׃ɫ 11.00 0.13 0.1275 ƫ
(1)bDʴ𰸞飺ܣ
(2)(j)bÈDbеԇxДiҺǏ(qing)տ՚е߀ԭԚwԛ](mi)ʳȺ͉A(yng)ٺⷴ(yng)⣻PH3(hu)ȼʴ𰸞飺ȥ՚е߀ԭԚwӰ푌(sh)(yn)Y(ji)
(3)PH3Ըiᣬi⛱߀ԭixY(ji)غ늺غ㡢ԭغƽ(sh)õxӷʽ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+3H2O(sh)(yn)Пo(w)xָʾFƿҺɫɫǡ׃?yu)o(w)ɫҰ犃(ni)׃ɫʾ_(d)˵ζKc(din)ʴ𰸞飺FƿҺɫɫǡ׃?yu)o(w)ɫҰ犃(ni)׃ɫ
ռEҺˮϡ250mLȡ25.00mLFƿÝȞ510-4mol/L Na2SO3(bio)(zhn)ҺζʣKMnO4ҺNa2SO3(bio)(zhn)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5PH38KMnO4Ӌ(j)õPH3|(zh)=6.010-7mol
=3.7510-7moltPH3|(zh)?jn)?sh)=
=0.1275mg/kg0.13mg/kgԓԭZ|(zh)ϸʴ𰸞飺11.000.13
ۜ(zhn)_y(c)PH3ĺҪøiҺȫa(chn)^`ͨ՚DZCPH3ȫգCз(yng)ȫӛͨ՚⼴M(jn)(4)еĵζtʣĸiƫζNa2SO3(bio)(zhn)Һweƫʴ𰸞飺ƫ
ĿлW(xu) (li)Դ }ͣ
}ĿSȵļӴl(f)չȼ늳܇ɞоn}Dijn}MO(sh)Ӌ(j)Һwȼ늳ʾDP(gun)_
A. ԓ늳صă(yu)c(din)Dza(chn)ȾwҺwȼϱڔy
B. 늳(ni)ʹõxӽQĤOH-(jng)QĤؓ(f)O
C. ԓȼ늳ص늘Oϲö{̼ϣDĿ|e
D. ԓ늳ͨN2H4늘OOl(f)늘O(yng)ʽN2H4+4OH--4e-=N2+4H2O
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ĿлW(xu) (li)Դ }ͣ
}Ŀ\(ZnS)һNҪĻԭyˮɟ\ďU\ȡ乤ˇDʾ
1\ҵĽȡɲõķ____________(̖(ho))
ĥ ڶνȡ ߜض ܼӉ ݔ
2EÞVе|(zh)_______________(W(xu)ʽ)
3EпɵCd|(zh)µs|(zh)ԇX(yng)____________
4E߀ԻNa2SO4(li)ȡNa2S
ٙz(yn)ZnSwǷϴɃķ_________________
Na2Sɵ|(zh)Na2SO4CH4ڸߜlȡW(xu)(yng)ʽ_______________________________
5EZnCO3bmolECddmol,õVL|(zh)Ȟcmol/LNa2SO4ҺtՓ\к\Ԫص|(zh)____________
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ĿлW(xu) (li)Դ }ͣ
}ĿȣClO2ǘOˮҲcˮl(f)W(xu)(yng)SGɫwc(din) 11̎UˮijСMڌ(sh)(yn)̽ ClO2 c Na2S ķ(yng)شІ(wn)}
1ClO2 Ƃ
֪SO22NaClO3H2SO42ClO22NaHSO4
b A з(yng)ĻW(xu)ʽ____________
ռ ClO2xψDеbB?yn)?a________________Сĸʾ
b D __________________
2ClO2 c Na2S ķ(yng)
ռ ClO2 N2 ϡ(qing)䷀(wn)mϡጺ ClO2 ͨψDʾbгַ(yng)õo(w)ɫҺһΕr(sh)gͨ^(gu)Ќ(sh)(yn)̽ I з(yng)Įa(chn)
_________________________________
ClO2 c Na2S (yng)xӷʽ____________̎Uˮr(sh)ClO2 (du)Cl2 ă(yu)c(din)____________Όһl
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ĿлW(xu) (li)Դ }ͣ
}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.(bio)(zhn)r22.4 LеķӔ(sh)ĿNA
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ĿлW(xu) (li)Դ }ͣ
}ĿһN͵ľGɫԴһNҪĻԭ|(zh)C Ӌ(j)cˮⷴ(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(shu)(yng)_(d)ƽB(ti)__________
a(ni)|(zh)׃ bH2cH2Og|(zh)֮Ȳ׃
cϚwܶȲ׃ dγ a mol H-HIͬr(sh) 2 amol H-OI
2(du)ڷ(yng)ͬضȺ͉(qing)(du)H2a(chn)Ӱ±
(qing) 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
4(du)ڷ(yng)ƽr(sh)ٳCO2ʹԭ(li)2tƽ_____________(yng)淴(yng)Ƅ(dng)(dng)ƽCO2_________׃׃С׃
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ĿлW(xu) (li)Դ }ͣ
}ĿABCDEԭ(sh)NԪAԭ(sh)BDԭ(sh)֮͵1/4CԪص߃r(ji)ˮһNЏ(qing)AͱDԪصăɷNҊ(jin)ҺͶBԪصăɷNҊ(jin)ͬخw0.005mol/LҺpH=2 ֮gD(zhun)P(gun)ϵDʾַ(yng)ʡԣД_
A. CDԪγɻٹr(ji)
B. ADքecBԪγɵĻﶼǴȾ
C. CDĺ(jin)xӾܴM(jn)ˮx
D. EˮԴDˮ
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ĿлW(xu) (li)Դ }ͣ
}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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