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2015ʡ人пѧԾ
һѡ⣨8С⣬ÿСֻһѡ⣬ÿС3֣24֣ 13֣б仯ڻѧ仯ǣ A ̥ը B C D ɱ 23֣˵ȷǣ A ˮϴгԷ B Ҫɵ C û̿ԽˮӲ D Ͻһִ 33֣дǣ A ΪٰɫȾʹϴ B ̼ಽУٿ C ŻʱϹ D Ƹ 43֣˵ȷǣ A ʳáع͡к B úʯ͡ȻڿԴ C ΪʳƷȫžʹκʳƷӼ D ΪũӦʩû 53֣ͭҪɷǼʽ̼ͭʽ̼ͭȷֽĻѧʽΪCu2OH
2CO3
2CuO+X+CO2˵ȷǣ
A ӦǰͭԪص B ʽ̼ͭͭԭӺԭӵĸΪ23 C XԷС D Cu2OH2CO3ʵװúʵȡCO2ķװͬ 63֣й֮IJתϵͼʾСʾܷ֮ѧӦʾ֮תϵ˵ȷǣ
A Xһֳл
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B ӦһβμӷӦ C CaOH2ҺмCaOҺһ D ͼезӦûӦ 73֣Сͬѧ̽ʵʵ飨ͼ1˸Ľͼ2ʾԹܶиһÿ2һη̪ҺֽװŨˮСҩƿ̶ƤϣԹܶСҩƿϵƿԹеСҩƿƿ ͼ1ͼ2еʵ˵ ͼ2ͼ1ʵԼ
ͼ1ͼ2ʵ֤ڲϵ˶
ŨлӷԣŨˮŨҲɴﵽʵĿģ ûСҩƿͼ2ʵҲɴﵽʵĿģ ˮУֽ죮 ˵дǣ
ۢ ۢ ܢ A B C D
83֣ijɫĩFeFeOCuOCһֻ֣Ϊ̽ɷ֣Сͬѧͼʾ̽ʵ飮
ڸʵ˵
Һ׳dzɫԭɫĩһFe ֻʣ ݲһC
кɫһCuO ݹҳʺɫԭһFeCuO ˵ȷĸǣ A 1 B 2 C 3 D 4
ѡ⣨5С⣬26֣ 94֣ͼ1ΪijԪصԭӽṹʾͼøԪɵĵʿɲⶨĺʵװͼ2ʾ
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1Ԫԭӵĺ˵Ϊ ڻѧӦиԭ ӣ 2ͼ2ʾװзӦĻѧʽΪ
104֣NaOHNa2CO3NaClڲܼͬеܽ±ʾ 1 NaOHNa2CO3NaClֱˮеܽȣS/g t/ NaOH NaCl Na2CO3 0 42 7.1 35.7 10 51 12.2 35.8 20 109 21.8 36.0 30 119 39.7 36.3
2 £NaOHNa2CO3NaClֱҴеܽȣS/g NaOH NaCl Na2CO3 17.3 0.01 0.1 ݱ1ͱ2ṩݻش⣺
1NaOHˮеܽ¶߶ С
220ʱʳˮʵΪ ȷ0.1% 3Ϊ֤CO2NaOHӦСͬѧCO2ͨ뱥NaOHҴҺУƲʵɹ۲쵽 Ʋ 117֣һɫ̼ܺơơȻءᱵеһֻ֣ijѧȤСΪ̽ɷʵ飺
ȡձУˮϽ裬ձڹˮı仯ͼ1ʾ
ȡBʱҺԹУμӷ̪Һ̪Һɫ ձеμϡᲢϽ裬ձڹϡı仯ͼ2ʾ
ش⣺
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1BCοɹ۲쵽 CDҺpH С䡱
2ԭɫһ ܺ 3DʱҺһе
4Ϊһ̽ðɫijɷ֣ͬѧȡԭƷԹУˮܽ⣬ ˣҺм ۲ 125֣Щ尴һĽᾧˮнᾧˮľһ¶»ȥᾧˮᾧ壨H2C2O4?xH2Oڳһɫ壮ᾧʱֽĻѧʽΪ H2C2O4?xH2O
x+1H2O+CO2+CO
ijѧȤСͬѧøϢԼѧ֪ʶƲչʵ飬ⶨᾧнᾧˮͼй̶װȥװãװABеԼע㹻
װABžעеĿװã
ȡΪmIJᾧ壬ȫֽ⣬ȫͨװã
¼װAӵΪaװBӵΪbװCΪV
סҡλͬѧֱװABCݼòᾧнᾧˮ
ش⣺
1װAʢŵҺ װB װC֮һDz
2ͬѧװBĿɿԾз˼ۣΪӦװAвʹԼļ ƫСƫ
3ͬѧװAᾧˮΪ ôʽʾ 136֣ʢҺԹмһɫͭĩǡȫӦˣõΪ14.2%ɫҺ10g㣺 1Һʵ 2ʵǰԹҺ
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