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Դ:51ߺҽ    :2908    :2013-10-11 9:05:28
ĿǰˮĴһΪһҪѧˮпɳȥȻˮ塣һֻȥˮеƮͲ״̬ȾʣˮpHֵˮĸʴ̶ȺͼٺˮһѧȥˮдлʹˮһĹչ̡ദǶҪֳˮ߼ȴˮԺסԭ΢ʺオлȣҪԱһȥȾʣԱʹˮá

ߺһҽˮַ
һԭˮ
ˮгܽ״̬л޻ȾͶԭڵӵǨƣԭʹתΪ޺ʡڹҵˮʱõУO2Cl2O3Ca(ClO)2H2O2ȣԭˮʵͺлˮˮȻˮɫɱӡ衢̣ˮBODCODȾЧĿǰԭҪںˮĴ


1(2010ۣ26)ijʳˮеĵԪضNH4NH3H2Oʽڣ÷ˮĴ£



(1)̢񣺼NaOHҺpH930 棬ͨϳա
ӷʽʾNaOHҺã _______________________

ûѧƽԭͨĿ______________________________________
(2)̢΢õNH4ӦNO3Ӧʾͼ£





ٵһӦ________Ӧ(ѡȡȡ)ж____________
1 mol NH4(aq)ȫNO3(aq)ѧʽ______________
(3)̢һ£ˮмCH3OHHNO3ԭN2÷Ӧ32 g CH3OHת6 molӣμӷӦĻԭʵ֮________


1(2011ۣ28)ˮɵĵȾѳΪһԵױijģˮѵ̣FeۺKNO3ҺӦ̽ѵԭѵʵӰ졣
(1)ʵǰ0.1 molL1H2SO4ϴFeۣĿ________ȻˮϴԣڽKNO3ҺpH2.5ΪֹеO2ѵӰ죬ӦKNO3Һͨ________(дѧʽ)
(2)ͼʾFeۻԭKNO3ҺУҺŨȡpHʱı仯ϵ(ָӦȥ)ͼϢдt1ʱǰ÷Ӧӷʽ____________ t1ʱ̺󣬸÷ӦڽУҺNHeq\o\al(,4)ŨFe2Ũȴû󣬿ܵԭ________________





(3)ÿӰѵʵ¼裬ɼ

ͼ
һҺpH
____________________________________________________
_____________________________________________________

(4)ʵ֤һдʵ鲽輰
(֪ҺеNO3ŨȿɫDzⶨ)

ʵ鲽輰ۣ


ˮ
ˮˮһҪҪͨԭӦʹˮĺؽԪصתΪȥĿǰ˷Ҫں6CrˮĴ⣬Hg2Cu2ؽӵȾֱӼ(Na2S)ʹ֮תΪȥ


2(2011ۣ10)ҵˮгһĺͣǻ༰̬ϵͳܴ𺦣дõĴ֡




÷ĹΪ

еڢٲƽ⣺2(ɫ)2H(ɫ)H2O

(1)ƽϵpH2Һ________ɫ
(2)˵ڢٲӦƽ״̬__________
a͵Ũͬ

b2vv

cҺɫ
(3)ڢڲУԭ1 mol Ҫ______mol FeSO47H2O
(4)ڢ۲Cr(OH)3Һд³ܽƽ⣺Cr(OH)3(s)Cr3(aq)3OH(aq)

£Cr(OH)3ܶȻKspc(Cr3)c3(OH)1032Ҫʹc(Cr3)105 molL1ҺpHӦ________
2ⷨ
÷Fe缫⺬ԷˮŵУҺpHߣCr(OH)3
(5)Fe缫ԭΪ________________________________
(6)ҺpHߵԭ(õ缫Ӧ)______________Һͬʱɵij__________

2۸кˮҪѧŷţ̷(FeSO47H2O)ѷˮе۸ԭΪ۸ӣټʯˮʹתΪCr(OH)3ҪӦĻѧʽ£
H2Cr2O76FeSO46H2SO4===3Fe2(SO4)3Cr2(SO4)37H2O

𷽷1104 L(6)78mgL1ķˮ(CrԭΪ52)Իش
(1)󣬳гCr(OH)3⣬__________________________(ûѧʽʾ)
( 2)̷ǧˣ
3(2011ȫ13)ijˮ[FeSO4(NH4)2SO46H2O]ӦԪغ͸ԪȫתΪóõn mol FeOFeyCrxO3Ǵеʵģ ()

A淋ʵΪn(2x)mol

BˮеʵΪnx/2 mol

CӦзתƵĵΪ3nx mol

DFeOFeyCrxO3У3xy
4ж˵ǷȷȷĻ̡Ļ
Na2SȥˮеHg2Hg2S2===HgS ()

кͷˮ
кͷڴԷˮԷˮԷˮͶӼʯҡƵȽкͣԷˮд뺬CO2̵ʽк͡

3ijֽŷŵķռˮ(ںNa2CO3)100 mLs1Ϊ˲ⶨˮռŨȣijСȡ250 mLϼϡ10ȡ50 mLƽֳ2ݣֱ0.120 0 molL1ζһݲü׻ָʾȥ24.20 mLڶ÷ָ̪ʾȥ17.4 mLԼ㣺
(1)ռNaOHNa2CO3ʵŨȸǶ٣(λС)

(2)ûС1.2 molL1ķкռҺעӦΪ٣(1λС)



1(1)NH4OH===NH3H2O

ڷˮеNH3ߣʹNH3H2ONH3H2OƽӦƶڳ
(2)ٷȡH273kJmol1<0(Ӧ)


(3)56

2(1)ȡ(2)c(3)6(4)5

(5)ӦΪFe2e===Fe2ṩԭFe2
(6)2H2e===H2Fe(OH)3

3(1)Ϊ0.5088 molL1,0.326 4 molL1(2)96.8mLs1
ȵ㾫
1(1)ȥ۱ʡN2

(2)ɵFe2ˮ(ҺеOH)(3)¶ȡۿС
(4)

ʵ鲽輰ۣ
ٷֱȡŨȵKNO3ҺͬԹУ
ڵҺpHͬͨN2
۷ֱҺмۣͬ
ɫDzⶨͬӦʱʱҺеŨȡ
pHͬKNO3ҺУŨȲͬpHѵӰ죬Ӱ졣


(⣬𰸺)

2(1)Fe(OH)3CaSO4(2)12.51 kg

78101 kg x

x(7.8101kg834)/5212.51 kg


3A

4








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