4. In the reaction of Zn with HCI, 140.15 g of ZNCI2 was actually formed, although the theoretical yield was 143 g. What was the percent yield? 5. 12.5 g of copper are reacted with an excess of chlorine gas, and 25.4 g of copper(II) chloride are obtained in the experiment. Calculate the theoretical yield and the percent yield. Cu + Cl2 → CuCl2

Q: help

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