Hello, I was wondering what the formula is for soap? I heard from other sourses that it was CH3(CH2)16COONa). Is this correct?

There is not a formula for soap because there are many soap-like substances which are commonly sodium or potassium salts of long-chain fatty acids

Correct. 'Soap' is not a unique molecular compound. 'Soap' is a classification like 'acid' or 'base' or 'ketone'.

hey, there are some soaps that can be/are unique molecular compound, though

hey, there are some soaps that can be/are unique molecular compound, though

 

Yeah, and there are some acids that can be/are unique molecular compounds too. If you were to go and say 'what's the exact molecular formula for an acid?' you'd get the same response; There is no exact formula. You can give a general formula for a ketone, or an acid, or a base, but you can only give an EXACT formula for a specific compound.

does anyone know where the lye for soap can be obtained?

online

does anyone know where the lye for soap can be obtained?

From a reputable chemical supplier...or other sources if you happen to have them.

actually, you should just go to your local hardware store. They should have Red Devil lye, 100% pure sodium hydroxide.

 

Peace.

Back to the OP, the formula for soap is generaly; 2 parts deadly caustic goo, 1 part awful poison, and 2 parts scaulding hot lard.

Many a colonial woman died making soap. I'd avoid making it myself if at all possible.