Unformatted text preview: K +-Cl- pair, and r is the distance innanometers. The net energy E N is just the sum of the two expressions above. (a) Superimpose on a single plot E N , E R , and E A versus r up to 1.0nm. (b) On the basis of this plot, determine (i)the equilibrium spacing r between the K + and Cl + (c) Ions and (ii) the magnitude of the bonding energy E between the two ions. Problem 3 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCL) (19.4 vs. -85 ° C), even though HF has a lower molecular weight....
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- Spring '08
- Ion, Chemical bond, Alkali, Dr. Seal TA