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£¨1£©¢Ù [peq(NO)]2/[peq(N2) peq(O2)] 1·Ö

¢Ú a d 1·Ö £¨2£©ÓÉÓÚ·´Ó¦ÎªÆøÌåÌå»ý¼õСµÄ·´Ó¦ÇÒΪ·ÅÈÈ·´Ó¦£¬¹Ê¡°Í­Ï´¡±Ó¦ÔÚµÍΡ¢¼ÓѹÌõ¼þϽøÐС£ 2·Ö

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£¨3£©ÔÚÒõ¼«Í¨ÈëµªÆø 1·Ö

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Ñô¼«·´Ó¦£º4OH ¨C 4e = 2H2O£«O2¡ü 1·Ö

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£¨4£©¢Ù 2NH3 ¨C 6e + 6OH = N2¡ü + 6H2O 1·Ö

¢Ú ?H = 4?3?B.E.(N?H) + 3?B.E.( O=O) ¨C 2?B.E. (N?N) ¨C 4?3?B.E.(O?H)

= (12?389 + 3?498 ¨C 2?945 ¨C 12?465) kJ/mol = ¨C 1308 kJ/mol 2·Ö

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£¨1£©FeTiO3 + 4H+ + 4Cl? = Fe2+ + TiOCl42? + 2H2O 1·Ö £¨2£©H2O2ÈÜÒº¡£ÒòΪËü²»»áÒýÈëÔÓÖÊÇÒʹÓ÷½±ã¡£ 1·Ö £¨3£©2FePO4 + Li2CO3 + H2C2O4

2LiFePO4 + 3CO2 + H2O

1·Ö

£¨4£©Î¶ȹý¸ßʱ£¬·´Ó¦Îﰱˮ£¨»òË«ÑõË®£©ÊÜÈÈÒ׷ֽ⡣ 1·Ö £¨5£©Li2Ti5O15ÖУ¬LiΪ+1¼Û¡¢TiΪ+4¼Û¡£ÉèÓÐx¸ö¹ýÑõ¼ü£¬Ôò?2¼ÛOΪ(15?2x)¸ö£¬´Ó¶øÓÐ2?1+5?4 = 2x + 2(15?2x)£¬½âµÃx = 4£¬¼´Li2Ti5O15ÖÐÓÐ4¸ö¹ýÑõ¼ü¡£ 2·Ö £¨6£©¢Ù ζÈÉý¸ß£¬½þ³öËÙÂʼӿ죻 1·Ö

¢Ú 70?CÒÔÏ£¬Ìú¡¢îѵĽþ³öÂʾùËæÊ±¼äÔö¼Ó¶ø³ÊÏßÐÔÔö¼Ó£¬80?CÒÔÉϲ»ÊÇÏßÐÔÔö¼Ó¡£ 1·Ö £¨7£©ÓÉH3PO4(aq) 3H+(aq) + PO43? (aq)

µÃK = Ka1Ka2Ka3 = 1.9?10?22£¬¿ÉÖªÌåϵÖÐPO43?Ũ¶ÈΪ1.9?10?22 mol/L£¬¶ÔÓÚCa2+ÓëMg2+£¬ÓÐ

[c(Ca2+)/c?]3[c(PO43?)/c?]2 = 2.9?10?49 ÆäÖÐc? = 1 mol/L [c(Mg2+)/c?]3[c(PO43?)/c?]2 = 3.6?10?50

ÒÔÉÏ[c(Ca2+)/c?]3[c(PO43?)/c?]2 ºÍ[c(Mg2+)/c?]3[c(PO43?)/c?]2µÄÖµ¾ùԶСÓÚÆäKsp?£¬Òò´Ë²»»áÉú³ÉCa3(PO4)2ÓëMg3(PO4)2³Áµí¡£

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£¨8£©Li1?xFePO4 + xLi+ + xe? = LiFePO4 1·Ö Îå¡¢£¨14·Ö£©

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£¨1£©Ka1 = [H+][H2PO4¨C]/[H3PO4]

¼ÙÉèÀë×ÓŨ¶ÈÓë[H3PO4]Ïà±ÈºÜС£¬ 1·Ö ÔòÓÐ

[H+]2/2.0 = 7.1¡Á10?3 (mol/L)2 1·Ö [H+] = (7.1¡Á10?3¡Á2.0)1/2 mol/L = 0.119 mol/L = 0.12 mol/L 1·Ö

ÑéË㣺[H3PO4] = (2.0 ¨C 0.119) mol/L = 1.881 mol/L

[H+] = (7.1¡Á10?3¡Á1.881)1/2 mol/L = 0.116 mol/L

£¨2£©ÓÉNa2HPO4ÓëNaH2PO4Åä³ÉÈÜÒº 1·Ö

Ka2 = [H+][HPO42?]/([H2PO4?]/c?) c? = 1 mol/L

6.3¡Á10?8 = 1.0¡Á10?7¡Á[HPO42?]/[H2PO4?]

[HPO42?]/[H2PO4?] = 0.63 2·Ö

£¨3£© [H2PO4?] = 0.10 mol/L

H2PO4?µÄÎïÖʵÄÁ¿= 0.10 L ¡Á 0.10 mol/L = 0.010 mol

¼ÓÈë0.0040 mol OH?ºó£¬H2PO4?µÄÎïÖʵÄÁ¿ = (0.010 ? 0.0040) mol = 0.0060 mol

1·Ö

Æðʼ[HPO42?]£º0.63¡Á 0.10 mol/L = 0.063 mol/L 1·Ö ÆðʼHPO42?µÄÎïÖʵÄÁ¿= 0.010 L¡Á0.063 mol/L = 0.0063 mol

×îÖÕHPO42?µÄÎïÖʵÄÁ¿= (0.0063+0.0040) mol = 0.0103 mol 1·Ö Ka2 = [H+][HPO42?]/[H2PO4?] 6.3¡Á10?8 mol/L = [H+]?0.0103/0.0060

[H+] = 3.67¡Á10?8 mol/L 1·Ö

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