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S “ S “ : :2t bt?v M V 3 I k k k5 “ S “ : S “ : s : s i s5 i Y sAs5 k5 (r k5 s5B k5 BaA b5 20s b 0.5s 1. XQ 2N2O5(g) 4NO2(g)+ O2(g)mrH D 059F9Q q _ MZ_ _ 6Q q _b 2. Q Cr2O72- + 14H+ + 6e = 2Cr3+ + 7H2O HqM “ _ 0 i Cr2O72-| 9 CaOAlCl3HClb 10. K0K0 0 n, l, mGQ 4, 0, 0, 21 b 11. Hg2+ Hg22+ AF a HsY 3 HgO5 Hg2Ob S “ S “ : :12. (NH4)2Cr2O7s s Cr2O3 N2 H2Ob 13. NaBr H3PO4Q HBr Na2HPO4b 14. O3s00 | sp3s0“ 3 oBs0 43 ob 15. H3PO4A c(PO43-)=)(K433POHab 16. )()(23aqFeeaqFe+Q H+ OH-QyN pH9F H Fe ? 3Mb 17. P 0 F4 b 18. 65Q q“ k9vb 19. HSb(OH) 4 b 20. Sb2S5aSb2S3 a ?i ;b a9 5 20s 5 4s 1. BAc 0.03 mol/LPb2+ 0.02mol/L Cr3+, _ F i NaOH A F - A8M Pb2+ Cr3+( V ? _b X1521043.1)(K=OHPbsp 313103.6)(K=OHCrsp 1 05$ 2 1s 0 A pH e I S$ 2. |/ QF 298.15K 2Fe3+(aq) + Sn2+(aq) 2Fe2+(aq) + Sn4+(aq) X S VSnSn 151.0)/(E24=+VFeFe 771.0)/(E23=+ 1F(E ) = 96485 C mol-1b ks 1m TV U 29 S 39 Q(298.15 )rmGKK , 4 p3320.1)()(+= dmmolFecFec,24 3()()0.1cSn cSn moldm+ +=H b 3. pH=7.4A| 0.8 mol/LNaOH AF 250 mLc 3.48 mL i A9 F NaOH A8 8 VF bX i i85% wt/wt 1.69 g/mLs0 98 pKa1=2.1 pKa2=7.2 pKa3=12.7b 4. X212100.1)(K =CNAgf512100.6)(K=SAgspVOHO 4.0)/(E2=VSS 48.0)/(E2=9 / Q 2Ag2S + 8CN-+ O2+ 2H2O = 4Ag(CN)2-+ 2S + 4OH-6S “ S “ : :5. XQ FeO(s) + CO(g)= Fe(s) + CO2(g) K=0.51273Kb S ic(CO)=0.05mol/L c(CO2)=0.01mol/L k9 1 H CO i $ 29F FeO Y$ aes5 90s 5 10s 1. k d B ?800.6kJmol-1lB ?899.5 kJmol-17= ?2427 kJmol-1v= ?1757 kJmol-1 2. a0 a dB1“ a I QZ_$ 3. k 0 d Li+ Mg2+ Be2+ Al3+Z M b 4. k s sC 5. B A| # 8 B C 3b 8 B 5 8 C ? P = b| 8 B 0/5M 8 s0 92b# = D 7 A E F K2CrO4A Fb AaBaCaDaE F $i1Q Tb 6. _$ s $ to$ 7. D Z$ il$ ? p ?$ 8. h d C$ t+$ 9. ) 0 H 0 +$ I cl$
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