Achieve HW Week 9 #1
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Achieve HW Week 9 #1
Hi! I keep getting the name of this compound [Co(NH3)6]Cl3 : wrong, but I can't figure out what is wrong. I don't know why hexaamminecobalt(III) trichloride is wrong. Can someone please help?
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Re: Achieve HW Week 9 #1
Since you already have (III), you don't have to include the prefix "tri". Hope this helps!
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Re: Achieve HW Week 9 #1
You don't need to include the tri in front of the chloride because from the charge of the coordination compound, you know how many chlorines are needed in the compound.
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Re: Achieve HW Week 9 #1
You can drop the prefix from trichloride since the (III) for cobalt already accounts for the charges of three Cl.
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Re: Achieve HW Week 9 #1
You don't need the prefix trichloride because this is an ionic compound, and you only use prefixes in naming covalent compounds. Also the (III) implies that there are going to be three chlorides.
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Re: Achieve HW Week 9 #1
Hi! The correct answer would be hexaammine cobalt (III) chloride. You do not need to include the tri prefix because the presence of 3 chlorines is accounted for by the charge of the complex being +3. Therefore, 3 chlorines are necessary to neutralize the charge of the coordination compound, so it is unnecessary to include tri- in the name. Hope that helps!
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