Mr. Ragusa asks Hannah to make copper crystals from the following reaction. Cu(NO3)2 + 2Na --> 2NaNO3 + Cu Mr. Ragusa gives Hannah 86 g of sodium to conduct the experiment. Hannah gives Mr. Ragusa 52 g of copper crystals. What was Hannah's percent yield for her experiment? Please round your answer to 2 decimal places and do not include a unit for your answer

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