For the decomposition of mercury(II) oxide, HgO, to mercury…

For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen:                                                2HgO(s)2Hg(l) + O2(g)               ΔGo = 117.1 kJWhat is the standard Gibbs free energy of formation (ΔGfo) of mercury(II) oxide?   Periodic Table and Datasheet

For the reduction of silver with hydrogen:                  …

For the reduction of silver with hydrogen:                                2Ag+(aq) + H2(g)2H+(aq) + 2Ag(s)Given the thermodynamic data in the table, what is the standard change in Gibbs free energy for this reaction at 298 K?    Δ H f o / kJ∙mol –1 S o / J∙mol –1 ∙K –1 Ag + (aq) 105.58 72.68 Ag(s) 0 42.55 H 2 (g) 0 130.68 H + (aq) 0 0       Periodic Table and Datasheet

Which condition(s) will increase the concentration of dissol…

Which condition(s) will increase the concentration of dissolved oxygen (O2) in water?                I.             decrease the temperature of the solution.                II.            increase the total external pressure on the solution by adding more N2 gas   Periodic Table and Datasheet