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March 26, 2017

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A nurse wants to add water to 18 ounces of a 10% solution of benzalkonium chloride to dilute it to an 8% solution. How much water must she add? (Hint: Water is 0% benzalkonium chloride.)

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    A nurse wants to add water to 22 ounces of a 10% solution of benzalkonium chloride to dilute it to an 8% solution. How much water must she add?

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