The following problems all deal with the same situation described below. As you probably know (and as we have discussed in class), water is a polar molecule with partial charges δ=6.439×10^−20C. Imagine a simplified model of an aqueous Ca^2+ solution: a single Ca^2+ ion and a single H2O molecule sitting in a vacuum (so ϵ=ϵ_0=8.85×10^−12 C^2/N⋅m ^2 ). According to the reference below, the typical distance between the oxygen and the Ca2+ ion is 9.2pm(1pm=1×10^−12m). From the properties of the water molecule, this means that the Ca^2+ ion is 101.7pm from each hydrogen. The masses for each are also given in the table below. What is the potential of the Ca2+ ion? Select one: a. +114.5 V b. −114.5 V c. −57.2 V d
. +57.2 V e. 0 V f. −137.2 V