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Topic: INORGANIC CHEMISTRY  (Read 2256 times)

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Offline seje12

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INORGANIC CHEMISTRY
« on: October 28, 2015, 11:06:20 PM »
HELP ME PLEASE:

Using the concept of ionisation energy and lattice enthalpy, [6 marks]
(i) Explain why formation of Fe2+ and Fe3+ are feasible but only
Ca2+ is possible in the case of Ca.
(ii) Explain why Fe+ and Ca+ salts are rare despite the fact that
relatively less ionisation energy are needed to form the metal ions.
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Offline Borek

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Re: INORGANIC CHEMISTRY
« Reply #1 on: October 29, 2015, 03:00:10 AM »
You have to show your attempts at solving the problem to get help, this is a forum policy.
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Offline shafaifer

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Re: INORGANIC CHEMISTRY
« Reply #2 on: November 05, 2015, 07:03:09 AM »
Please take into consideration the change in G (can be done through changes in H and S, respectively).
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