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DIY orajel

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mediopolis:
Hello, I bought some Benzocaine HCL powder to mix with some warm water to make a slightly stronger version of orajel for my tooth until I can visit my dentist next month. I got the HCL because I read that its more water soluble, and figured i can use a qtip to swab it around my tooth.

If I wanted to make a 25% solution, how many milligrams of benzocaine powder would I mix if I have 30ml of water?

Thanks!

Borek:
Please read the forum rules, especially the part about self medication.

This is a trivial problem related to concentrations, what you wrote sounds like a first homework in a chemistry course.

Locking the topic.

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