(完整word)第三届全国大学生化学实验竞赛试题及答?.,推荐文档 - 百度文库

ӦƳ__________g

18 ijҺpH=7.200ֵ__________λЧ֣Һӻ[a(H+)]Ϊ_________

19 ԼĽŨΪ

H2SO4 __________ molL-1 HNO3 __________ molL-1 HCl __________ molL-1 ˮ __________ molL-1

20 ɼֹȼƵijùԴ__________ճزΪ__________ֹȼƵijùԴ__________ ճزΪ__________ 21 úƻ¶ߵ__________

[A] [B]ԭ [C] [D]пԭ 22 ijʴӺӵˮҺгҪǷϴӸɾӦе __________ [A]Mg2+ [B]Na+ [C]Cl- [D]SO42-

23 25ҺܴƿȡҺתƵ׶ƿУƿмٵҺ___________ [A]25.00 [B]25.00 [C]С25.00

24 ˮܽ______________ [A] [B]þ [C] [D]ᱵ

25 ӦͬһҺϵнУ Cl2 + 2I-= 2Cl- + I2 Cl2 + 2Br- = 2Cl- + Br2

5Cl2 + I2 + 6H2O = 10Cl- + 2IO3- + 12H+

䡰ʼӦȺ˳ȷ_______________ [A]٣ڣ

[B]٣ۣ [C]ۣڣ

26 Sn2+ ҺŨ NaOH ҺijɫΪ_______________ [A]ɫ [B]ɫ [C]ɫ

[D]ɫ𽥱ɫ [E]ɫ𽥱ɫ

27 NH3HClCO2H2SN2 ˮеܽ˳_______________ [A]NH3 > HCl > CO2 > H2S > N2 [B]HCl > NH3 > CO2 > H2S > N2 [C]HCl > NH3 > H2S > CO2 > N2 [D]H2S > HCl > CO2 > NH3 > N2

28 ڸ£1000棩չ_______________ [A]Ũ [B]Ũ [C]

[D]ŨᡢŨж

ҳ

1 A ̣ B 죻 C

2 Ϳƿɫֱء̡ɫ 3 B 4 D

5 ӦˮúУӦˮС

6 NaCNÿ 200 25 10 Na2CO3 25 30FeSO4 Һȡ NaOH ԣøػƯ׷ʹֽ⣻ Hg۸ǡ

7 B 8 B 9 A 10 C 11 D 12 BD 13 B 14 A 15 D 16 C 17 200.2ˡ 18 3 λЧ֣6.3110-8 19 18 16 12 15

20 ɼֹȼƵijùԴ±صƣճزΪֹȼƵijùԴƣճزΪʯӢ

21 D 22 C 23 A 24 B 25 B 26 . A 27 . C 28 . D

޻֣25⣩

1 Ϊʲôúƹܱ? ⣿10֣

2 ü򵥵ķϴˢIJǷɾ?10֣

3 Ʒʱ˫۷ƽƷ˻򵥱۷ƽƶ޷ﵽƽ⣬ʱӦ뻹Ǽ?20֣

4 ζУζɺ󣬼һҺ壬Ӧδ10֣ 5 ҪˮǷCa2+ӦѡúֻѧԼ?20֣ 6 ѧżԼƿǩֽɫʲô?10֣

7 ij 0.5000molL-1 Ũȵ HCl ֱӵζ 25mL0.1molL-1 NaOH ˮҺŨȣǷȷ ? Ϊʲô ?20֣

8 25mL ҺȡҺܶȡٺ?10֣

9 Ϊʲôʵʢ NaOH ҺԼƿѡƤò ?20֣ 10 ŨУν?20֣ 11 Ʋ CO32- NaOH ˮҺ?30֣ 12 һˮҺк Fe2+ȥ?20֣ 13 ʵУΪʲôˮ CaCl2 ﰱ?20֣

14 Al(OH)3 Zn(OH)2 ǰɫü򵥵ķֻ֮һԼ?20֣

15 Ȳƿƿɫ?10֣

16 KNO3 ܽ¶߼ӣ NaCl ܽ¶ӺС NaNO3 KCl ΪԭƱ KNO3 ? 20֣

17 K2Cr2O7 ˮҺУ AgNO3 ˮҺʱҺpHֵ仯Ϊʲô?20֣

18 NaClO ˮҺУ KI Һܷ I2 ? 20֣

19 һˮҺк Sn2+Bi3+ӹʲôɫɣΪʲô? 30֣

20 Ӧƺͱ Fe2+ ˮҺ? 20֣

21 ڶֻԹи FeCl3 Һһ֧Թܼ NaF 壬ܽ⡣ȻڶֻԹиμ KI Һ񵴣֧ԹҺɫǷͬΪʲô? 10֣

22 ˮܽȺܵͣΪ KI Һ? 10֣ 23 ƺͱ SnCl2 ˮҺ30֣

24 豣ˮúУ֪õúˮأ30֣

ҳ޻ִ

1 úСĽܴʱ棬ȵƹܡڵȼú֮ǰȽСȼ𽥵ڿúı

2 ϴˢIJãˮ飬ϴˢɾ򣬲ûбϴˢɾ

3 ʱƷأ˫ƽӦ룬ƽӦ롣 4 ζʧܣصΡ

5 ѡÿԲΣиɲƳ

6 ѧżԼƿǩֽշֱǺɫɫɫ

7 ȷӦ 0.5000molL-1 HCl ϡͳ 0.1000molL-1 HClȻζԱСɵ 8 ȡ25.00

9 NaOH ܸʴNaOH ҺʱϳNaOH ͺƿڲҪɷ SiO2 ӦճԵNa2SiO3 Ѳƿճһ 10 Һϴôˮϴ

11 NaOH ҺƿУһңȡҺӲ CO2 ˮϡͼá򵥵ķҲɿٳ NaOHȻò CO2 ˮϴһ£ò CO2 ˮơ

12 H2O2 Fe2+ Fe3+ȻҺ pH ֵ2Һ Fe(OH)3 ˣȥFe2+

13 Ȼ CaCl2 ԣܺ NH3 γɼӺ

14 Al(OH)3 Zn(OH)2 ɫУֱӰˮܽ Zn(OH)2ܵ

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