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Ethan McCarthy 1F
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Joined: Wed Feb 27, 2019 12:17 am


Postby Ethan McCarthy 1F » Tue Jul 30, 2019 9:30 pm

When should hydrates be added to a coordination compound? When they are added they don't factor into the coordination number, right?

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Re: Hydrates

Postby Chem_Mod » Tue Jul 30, 2019 10:12 pm

When hydrates are added, they do not factor into the coordination number. There was an example during the review session where we needed to write the reaction that would occur with water upon the addition of the following compound: FeCl3. Cl- would not react with the water since it is a spectator ion, so Fe+3 would coordinate with water molecules (by the lone pair on the O). This would result in the formation of the coordination compound Fe(OH2)6+3.

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