E → electrostatic potential energy
Initially, distance of 0.40 nm:
1 nm = 10-9 m
d = 4.0x10-10 m
You may want to reference (Pages 165 - 166) Section 5.1 while completing this problem.
A magnesium ion, Mg2+, with a charge of 3.2x10-19 C and an oxide ion, O2-, with a charge of -3.2x10-19 C, are separated by a distance of 0.40 nm. How much work would be required to increase the separation of the two ions to an infinite distance?
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