1. Using acid-base theory explain your prediction of whether Keq for the following reaction is greater than or less than unity.
CdI2(s) + CaF2(s) ⇌ CdF2(s) + CaI2(s)
2. What is the ratio of the equilibrium constants of two reactions if the change in DG between them is -2.00 kcal/mol ?
3. What is the difference in the reduction potentials in millivolts between two reactions if the change in DG between them is -2.00 kcal/mol ?
4. How is formic acid classified in Arrhenius acid-base theory?
5. Explain your prediction of the formic acid, HCOOH, pKa value.
6. What is the strongest base that can exist in water?
Shown below is the Latimer diagram for Co under basic conditions.
+0.70V +0.42V -0.773V
CoO2 +0.70v—› Co(OH)3 +0.42v—› Co(OH)2 -0.773v —› Co
7. Write the reductive half-reactions for the conversion from Co(III) to Co(II) and from Co(II) to Co(0) under basic conditions (OH- freely available).
8. Calculate the potential for the reduction of Co(III) to Co(0).
9.Which species in the Latimer diagram is unstable with respect to disproportionation?