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= Ag + Cl

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5. 2 ·Ö (7449) 7449

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(A) K1 + K2 (B) K1- K2 (C) K1 ? K2 (D) K1 / K2

8. 2 ·Ö (0719) 0719

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d(O2)d(SO2)d(SO3)??2dt2dt (D) dt?

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15. 2 ·Ö (0580) 0580

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(A) 0.36 (B) 0.68 (C) 0.45 (D) 0.54

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Cl2(g) ÒÑÖª·´Ó¦ 2Cl(g)

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d 3z2 3

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Èý¡¢¼ÆËãÌâ ( ¹² 6Ìâ 45·Ö ) 21. 10 ·Ö (3713) 3713

ʵÑé²â¶¨ÏÂÁеç³ØµÄ E = 0.5469 V£¬?(-) = -0.2660 V£¬

Pt£¬H2(100 kPa)©¦H+(»º³åÈÜÒº)¡¬Cu2+(0.0100 mol¡¤dm-3)©¦Cu(s) (1) д³öÁ½¼«·´Ó¦ºÍµç³Ø×Ü·´Ó¦£»

(2) ¼ÆËã¸Ãµç³Ø·´Ó¦ÔÚ25¡æ ʱµÄ ¡÷rGm£»

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2?(1) ¸º¼«£ºH2(g) 2H+(»º³åÈÜÒº) + 2e?

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-3

=

(2) ? rGm = -zFE = -2 ? 96.5 ? 0.5469 = -106 (kJ¡¤mol-1)

? (3) Cu2++ 4NH3Cu(NH3)24 KÎÈ = [Cu(NH3)4] / ([Cu2+][NH3]4) 1/[Cu2+] = (KÎÈ[NH3]4) / [Cu(NH3)4] Éèƽºâʱ ] = 0.0100 mol¡¤dm-3 E' =?(+) ¨C?(-)

?(+) = E' +?(-) = 0.1722 - 0.2660 = -0.0938 (V)

2?[Cu(NH3)42?2?=

(0.0100 mol.dm) = 2H(»º³åÈÜÒº)+ Cu(s)

+

? ?(+) =(?)- (0.0591/-z) ? lg(1/[Cu2+])

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2???(??)-?(+)' ) z / 0.0591 = [0.3400 - (-0.0938)] ? 2¡Â0.0591 = 14.7

2? ËùÒÔKÎÈ(Cu(NH3)4) = 5 ? 1012

22. 5 ·Ö (3759) 3759

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ÒÑÖª£º(Cl/Cl) = 1.36 V£¬(HClO/Cl) = 1.63 V

2

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