Answer Happy

A galvanic cell consists of Be/Be2+ and Co/Co2+ half-cells at 25 °C. The initial concentrations of Be2+ and Co2+ are 0.10 and 1.0 M, respectively. What is the cell potential when the concentration of Co2+ has fallen to 0.20 M? a) 1.551 V Ob) -1.60 V c) 1.570 V d) 1.60 V e) 1.589 V
Jonization Constants of Acids and Bases at 25°C (K-1.0x10) Name of Acid Formula Acetic acid K₂ K₂ CHICOON Arsenic acid 1.8x10 H₂AsO 10+10 Acetylsalicylic Acid HOH-O 10x10 30x10 3.3*10* Arsenous and H₂AsOy Ascorbic acid 5.1x10 MỤC C 80x10 Benzoic acid 1.6x10 Cut COOH 6.5x10 Carbonic acid H₂CO, 4.2x10 4.8x1011 Formic acid HCOON 1.7x10- HA Hydrochloric acid HCI Strong Hydrocyanic acid HCN 4.9x10 Hydrofluoric acid HE 7:1x104 Hydrosulfuric acid H₂S 9.5x10 1x10- Hypochlorous acid HOCI 3.5x10 Nitrous acid HNO: 4.5x104 Oxalic acid H₂CO 6.5×10 6.1x10 Phosphoric acid H₂PO 7.5x109 6.2x10 4.8x10 Sulfuric acid Sulfurous acid Very Large H₂SO. H₂SO 1.3x10 6.3x10 1.3x10 K Name of Base Ammonia 1.8x10-5 Aniline 3.8x10-10 5.4x10- Diethylamine 6.9x10- Dimethylamine 5.6x104 Ethylamine 3.0x104 Hydrazine 1.1x10- Hydroxylamine 4.4x10 Methylamine 1.7x10- Pyridine Triethylamine 5.6x10 6.4x10-5 Trimethylamine 1.5x10-14 Formula NH₂ CHINH: (CaHs)2NH CHINH CHÍNH H₂NNH₂ HÌNH CHÍNH CsHsN (C₂H₁)N (CHIN HÀNGONH: bonumy Puct Constants at 25°C Formula K Agr 17.10 16x50 Agci Agico, 8x1 AgyCro. 1210 8.3x101 Ag Ag50 AKOH) 18x10 1.8x10 BaCO Baf, Ba50. BS CaCO, CAF Ca(OH) Caso. Cos CuBr Cul Cu(OH) Cus Fes Fe(OH) Fe(OH)s Hg:50. Mg(OH) PbBrz PbCrO. Pub PbS SnS SICO S/SO ZnS 81*10* 11x10 16x10 8.710 4.0x10 8.0x10 24x10 40x10 4.2x10 5.1x10 22x10 6.0x10 6.0x10 1.6x10 1.1x10 6.5x10 1.2x10 6.6x10 2.0x10 1.4x10 34x10 1.0x10 1.6x10 3.8x10 3.0x10