distilled water

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#AskAChemist: Turn distill for what?

In this episode of #AskAChemist, I answer a question for mammalogist and field biologist @DNLee. She works with pouched rats and, very shortly, a fog machine. The not-so-secret recipe Dr. Lee’s fog machine uses to generate fog requires distilled water. “Why can’t I just use tap water? It’ll work in the recipe the same,” said Dr. Lee. Water is water, right?…