5: minutes
Problem 18
Textbook Question

A magnesium ion, Mg2+, with a charge of 3.2 * 10-19 C and an oxide ion, O2-, with a charge of -3.2 * 10-19 C, are separated by a distance of 0.35 nm. How much work would be required to increase the separation of the two ions to an infinite distance?

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