¡¶¶¨Á¿·ÖÎö¡·²âÊÔÌâ(Óдð°¸) ÏÂÔر¾ÎÄ

26¡¢40.00ml H2C2O4ÈÜÒº£¬Ðè20.00ml0.2000mol¡¤L£­1 NaOHÈÜÒº²ÅÄÜÍêÈ«Öкͣ¬¶øͬÌå»ýµÄH2C2O4ÈÜÒºÔÚËáÐÔ½éÖÊÖÐÒª¼Ó20.00ml KMnO4ÈÜÒº²ÅÄÜÍêÈ«·´

1Ó¦£¬´ËKMnO4_________ C(KMnO4)=0.2000mol¡¤L£­1___________________________¡£

527¡¢(NH4)2HPO4Ë®ÈÜÒºµÄÖÊ×ÓÌõ¼þʽ______[H£«] +[H2PO4£­]+2[H3PO4]=[NH3] + [PO43£­]+[OH£­]

28¡¢ÅðÉ°±ê¶¨HCl,ÈôÑ¡Óü׻ù³ÈָʾµÎ¶¨Öյ㣬»áʹHClÌå»ýÓÃÁ¿____Æ«´ó_________£¬±ê¶¨HClÈÜҺŨ¶È_________ƫС____________.

29¡¢¼×»ù³È+µåÀ¶¶þ»ÇËáÄÆ»ìºÏָʾ¼Á£¬Óë¼×»ù³È±È½ÏÆäÓŵã____±äÉ«Ã÷ÏÔ ±äÉ«·¶Î§Ð¡ __£¬Èç¹ûÓÃHCl±ê×¼ÈÜÒºµÎ¶¨Na2CO3ʱ£¬ÓøûìºÏָʾ¼Á£¬ÔòµÎ¶¨ÖÕµãÈÜÒºÑÕÉ«ÓÉ___ÂÌÉ« ___É«±äΪ___ÎÞÉ«_______É«¡£

30¡¢0.1000mol¡¤L£­1NaOH±ê×¼ÈÜÒº£¬Òò±£´æ²»µ±ÎüÊÕÁËCO2,µ±Óô˼îÒº²â¶¨HClÈÜҺŨ¶È£¬µÎÖÁ¼×»ù³È±äɫʱ£¬Ôò²â¶¨½á¹û_____ÎÞÓ°Ïì__________£¬ÓÃËü²â¶¨HAcÈÜҺŨ¶Èʱ£¬²â¶¨½á¹û_______Æ«¸ß_______£¨ÌîÆ«¸ß¡¢Æ«µÍ»òÎÞÓ°Ï죩

²Î¿¼´ð°¸

¡¶¶¨Á¿·ÖÎö¡·²âÊÔÌâA

Ò»¡¢Ñ¡ÔñÌ⣺

1¡¢ C 2¡¢B 3¡¢B 4¡¢C 5¡¢B 6¡¢C 7¡¢C 8¡¢A

9¡¢ B 10¡¢D 11¡¢D 12¡¢C 13¡¢D 14¡¢C 15¡¢C 16¡¢D

17¡¢D 18¡¢B 19¡¢C 20¡¢C 21¡¢C 22¡¢A 23¡¢C 24¡¢B

25¡¢D 26¡¢B 27¡¢B 28¡¢C 29¡¢C 30¡¢C 31¡¢C 32¡¢D

33¡¢A 34¡¢A 35¡¢D 36¡¢C 37¡¢B 38¡¢A 39¡¢D 40¡¢A

25

41¡¢C 42¡¢B 43¡¢A 44¡¢D 45¡¢A 46¡¢D 47¡¢C 48¡¢D

49¡¢B 50¡¢C 51¡¢B 52¡¢B 53¡¢C 54¡¢B 55¡¢A 56¡¢A

58¡¢C 59¡¢A 60¡¢D 61¡¢B

¶þ¡¢Ìî¿ÕÌ⣺ 1¡¢²»Ò»¶¨¸ß

2¡¢È¡¶à´Î²â¶¨µÄƽ¾ùÖµ

3¡¢£¨1£©20.1 £¨2£©12.00 £¨3£©0.1

4¡¢HCO3£­ H2O [H2CO3] + [H+] = [CO32£­] +[OH£­] 5¡¢(1) NaOH + Na2CO3 (2) Na2CO3 + NaHCO3 (3) NaOH (4) NaHCO3 (5) Na2CO3

6¡¢£¨1£©¸ºÎó²î £¨2£©ÎÞÓ°Ïì £¨3£© ¸ºÎó²î

7¡¢1£º2 8¡¢£¨1£©12 £¨2£© 7.0 £¨3£© 7.0 9¡¢

5.3cb% 10¡¢5.8¡Á10£­6 a11¡¢Ka(Kb) ÒÔ¼°C , Ka¡Ý10£­7 , ָʾ¼ÁµÄ±äÉ«·¶Î§Ó¦È«²¿»ò²¿·ÖλÓڵζ¨Í»Ô¾·¶Î§ÄÚ 12¡¢ ¼×»ùºì 5.28 13¡¢ 0.05880 14¡¢ 15¡¢0.09910< x < 0.1036 16¡¢ ÎÞ Æ«¸ß

17¡¢[ H£«] = [HCO3£­] £«2[CO32£­] £«[OH£­]

26

Ka1Ka2 Ka1?C NaOH

18¡¢0.007347 0.007465

19¡¢0.1 0.2 0.01 20 20¡¢6.0 5.0 ¼×»ùºì»ò¼×»ù³È 21¡¢30.00 ´ó

22¡¢Æ«²î ±ê׼ƫ²î ±ê׼ƫ²î 23¡¢

2Fe3O43Fe 24¡¢ÈÝÁ¿Æ¿ ׶ÐÎÆ¿

2O325¡¢5 3 3 ²»È·¶¨ 26¡¢²»ÉáÆú

27¡¢·ÖÎöÌìƽ ÈÝÁ¿Æ¿ ÒÆÒº¹Ü Á¿Í² Á¿Í²28¡¢²»±ä 29¡¢Æ«´ó 30¡¢2¡ª5% 0.1¡ª0.2%

31¡¢×ó ÓÒ 32¡¢ÈÝÁ¿Æ¿ ׶ÐÎÆ¿ 33¡¢11.13 34¡¢³ýÈ¥ CO2µÄÄ¿µÄ 35¡¢C6H5COOH ±½·ÓÄÆ 36¡¢3.75 7.63 37¡¢3.98 8.46 38¡¢ C5H5N C5H5N£«H 40¡¢£¨1£©9 £¨2£©0.30 41¡¢H3PO4-NaH2PO4 2.12 42¡¢10.70 7.00 3.30

43¡¢[H£«]=[H2PO4£­]£«2[HPO42£­]£«3[PO43£­]£«[OH£­]

[H£«]+[HC2O4£­]+2[H2C2O4]=[OH£­] 44¡¢HAc¡ªNaAc PH=PKa£­l g

CaCs NaAc [OH£­] =Kb1?Cb 45¡¢Æ«¸ß ÎÞÓ°Ïì

46¡¢2NaOH + H3PO4 =Na2HPO4 + 2 H2O

¡¶¶¨Á¿·ÖÎö¡·²âÊÔÌâB

27

µÎ¶¨¹Ü Ò»¡¢Ñ¡ÔñÌ⣺

1¡¢C 2¡¢D 3¡¢B 4¡¢C 5¡¢C 6¡¢C 7¡¢B 8¡¢A

9¡¢A 10¡¢B 11¡¢C 12¡¢B 13¡¢B 14¡¢C 15¡¢A 16¡¢C

17¡¢B 18¡¢A 19¡¢B 20¡¢A 21¡¢B 22¡¢A 23¡¢A 24¡¢C

25¡¢C 26¡¢D 27¡¢C 28¡¢C 29¡¢D 30¡¢D 31¡¢A 32¡¢C

33¡¢D 34¡¢C 35¡¢C 36¡¢ A 37¡¢B 38¡¢D 39¡¢C 40¡¢A

41¡¢D 42¡¢C 43¡¢A 44¡¢C 45¡¢B

¶þ¡¢Ìî¿ÕÌ⣺

1¡¢9973 2¡¢5aV/b 3¡¢0.86 1.06 1.26 4¡¢30.00 ¸ß 5¡¢

2Fe3O4 6¡¢Ð¡ С ´ó

3Fe2O3111487¡¢C2O42£­ + MnO4£­ +H?=CO2 + Mn2?+H2O

25555 ¼ÓÈȵ½75¡ª80¡æ£¬ËáÐÔÌõ¼þ£¬

8¡¢¾Æºì Mg2+ À¶ £¬ ¼ÆÁ¿µãʱµÎÈëµÄEDTA¶áÈ¡MgInÖеÄMg2+,ʹָʾ¼ÁInÓÎÀë³öÀ´£¬¹ÊÏÔʾÀ¼É«

9¡¢·ÀÖ¹·´Ó¦ 2I£­ + 2 Fe3+ = I2 + 2 Fe2+ µÄ·¢Éú¡£

10¡¢Æ«Ð¡ 11¡¢ÆÕ±éÐÔ¡¢×é³ÉÒ»¶¨ ¡¢Îȶ¨ÐԸߡ¢ÐγɿÉÈÜÐÔÅäºÏÎï 12¡¢·ÀÖ¹·´Ó¦ AgCl + SCN£­ = AgSCN + Cl£­ µÄ·¢Éú¡£ 13¡¢A¡¢10ml Á¿Í² B¡¢250mlÈÝÁ¿Æ¿

C¡¢25 mlÒÆÒº¹Ü D¡¢10 ml ÒÆÒº¹Ü E¡¢50ml¼îʽµÎ¶¨¹Ü

28