This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: the expression where n 1,2 is the positive or negative integer charge of the ion, e.g. for Na + interacting with Cl, n 1 =+1 and n 2 =1. To do these calculations you need the free space permittivity constant and the unit charge . a) Using your values for and e, calculate . Solution: b) Calculate the Coulombic interaction V(r) between two Ca 2+ ions separated by r=2x109 m. Solution: c) Calculate the interaction per mole of Ca 2+ pairs Solution: 3) Using the Table of bond enthalpies provided, calculate the reaction enthalpy for: Note : O 2 is O=O and CO 2 is O=C=O. Bond CH CO O=O OH C=O Enthalpy (kJmol1 ) 413 358 495 467 799 Solution: Calculate total enthalpy of bonds broken: Now calculate the enthalpy of bonds formed: Final calculation:...
View
Full
Document
This note was uploaded on 01/18/2012 for the course CHEM 152A taught by Professor Chiu during the Fall '12 term at University of Washington.
 Fall '12
 Chiu
 Atom, Mole

Click to edit the document details