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For a Certain Experiment, a Student Requires 20 ML of a Solution

Question 120

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For a certain experiment, a student requires 20 mL of a solution that is 11% HCl (hydrochloric acid). The store-room has only solutions that are 8% HCl and 12% HCl. How many milliliters of each available solution should be mixed to get 20 mL of 11% HCl?

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5 mL of 8%...

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