Compound ΔG∘f (kJ/mol) A +387.7 B +550.7 C +402.0 Use the data given here to calculate the values of ΔG∘rxn at 25 ∘ C for the reaction described by the equation A+B↽−−⇀C If ΔH∘rxn and ΔS∘rxn are both negative values, what drives the spontaneous reaction and in what direction at standard conditions? ΔG∘rxn= kJ The spontaneous reaction is enthalpy-driven to the left. enthalpy-driven to the right. entropy-driven to the right. entropy-driven to the left.

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.