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Assuming you meant to write it: CH3CH2CH2COONa

The IUPAC name is Sodium Butanoate.

It is a sodium salt of a carboxylic acid - sodium is there because of, well, the sodium cation, and four carbons mean a but- prefix so the anion is called butanoate. The -anoate is just something that the people at IUPAC like to confuse us with, it's just the naming system for this kind of salt and you just gotta learn it.

It can also be shown CH3CH2CH2COO-Na+ since there is an ionic bond between the ethanoate ion and sodium ion.

NB. If you put the 2 in front of the CH, that means that the CH is a branch off the parent chain... but since I couldn't find a way to arrange it that way which satisfies the valency of carbon, I assumed it was meant to be after the CH. Is this right?

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14y ago

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