Can I be charged with possession if I didn't know I was in possession of anything illegal?

Question Details: I recently got arrested for possession of meth, a Class D felony. The item they found during search was a bottle given to me by the guy who I was arrested with that day and he had a large amount of multiple drugs including meth. Being that I was not aware that the bottle he gave me had a residue of drugs in it can I still be charged with possession? Had I known it had trace amounts of anything illegal I wouldn't have accepted it or been carrying it around in my purse for days before we were arrested.

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