**A student wants to prepare exactly 250 mL of a 0.500 M aqueous potassium hydroxide solution. What mass of pota?**

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*A student wants to prepare exactly 250 mL of a 0.500 M aqueous potassium hydroxide solution. What mass of potassium hydroxide (molar mass = 56.10 g/mol) must the student dissolve in the 250 mL of solution?
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56.10 * 0.5*0.25 = 7.0125g

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