Find the magnitude of the electrostatic force between a na+ ion and a cl− ion separated by 0.68 nm.

Explanation:

We have a sodium cation, that is, an ion with a positive charge and a chloride anion, that is, an ion with a negative charge. According to Coulomb's law, the magnitude of the electrostatic force is given by:

The negative sign indicates that is an attractive force. So, the magnitude of the force is:

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