Force of Attraction between two ions?

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SUMMARY

The discussion centers on calculating the electrostatic force of attraction between Ca2+ and O2- ions separated by 1.25 nm using Coulomb's Law. The correct approach involves using the elementary charge (approximately 1.602 x 10-19 C) multiplied by the respective charges of the ions, which are +2 for Ca2+ and -2 for O2-. This results in a force calculation that accurately reflects the interaction between these ions.

PREREQUISITES
  • Understanding of Coulomb's Law
  • Familiarity with electrostatic forces
  • Knowledge of elementary charge (1.602 x 10-19 C)
  • Basic concepts of ion charges
NEXT STEPS
  • Calculate the force of attraction using Coulomb's Law with the provided ion charges and distance.
  • Explore the implications of ion interactions in ionic compounds.
  • Study the effects of distance on electrostatic force.
  • Learn about the role of ionic charges in determining lattice energy.
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Chemistry students, physicists, and anyone interested in understanding electrostatic interactions between ions.

Saladsamurai
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Homework Statement


Calculate the force of attraction between Ca2+ and O2- ions whose centers are separated by 1.25 nm.

The Attempt at a Solution

Well, I believe this is a matter of electrostatic force (Coulomb's Law)...but I am not sure what to use for the values of q1 and q2
Is it just the elementary charge multiplied by 2 for each ion (since they both have a net charge of 2)?

Is this the right idea?
 
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Yes.
 

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