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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Whelan Whelan
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9 years ago
Calculate the electron affinity for the formation of the hydride ion from the following information:

   H(g) + e- → H-(g)   ?
   1/2 H2(g) → H(g)   +217.9 kJ/mol
   Na(s) → Na(g)   +107.3 kJ/mol
   Na(g) → Na+(g) + e-    +495.8 kJ/mol
   Na(s) + 1/2 H2(g) → NaH(s)   -60.0 kJ/mol
   NaH(s) → Na+(g) + H-(g)   +810.9 kJ/mol

A) -50.1 kJ/mol
B) -70.1 kJ/mol
C) -816 kJ/mol
D) -1632 kJ/mol
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Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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hbutler2hbutler2
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