The decomposition of magnesium carbonate is shown           …

The decomposition of magnesium carbonate is shown                                            MgCO3(s) → MgO(s) + CO2(g)       ΔHo = 101 kJ∙mol–1 and ΔSo = 175 J∙K–1∙mol–1 What condition will decrease the value of ΔG (become more negative)? I. Increase the temperature II. Increase the concentration of CO2(g)  

AgBr has very low solubility in water. Silver ions form a co…

AgBr has very low solubility in water. Silver ions form a complex ion with thiosulfate. Ag+(aq) + 2S2O32–(aq) ⇌ [Ag(S2O3)2]3–(aq) If sodium thiosulfate is added to a saturated solution of AgBr in equilibrium with solid AgBr, how will the concentrations of free Ag+(aq) and Br–(aq) change?

What is the standard electrode potential for a galvanic cell…

What is the standard electrode potential for a galvanic cell constructed in the appropriate way from these two half-cells?                                              Standard Reduction Potentials   Cr3+(aq) + 3e– → Cr(s)              E°red = –0.74 V                                   Co2+(aq) + 2e– → Co(s)              E°red = –0.28 V