Percentage Yield and Percentage Purity

If this reaction has a percent yield of 77.3%, what mass of sodium must be reacted? (3) 25.4 g. 4. The production of silver from the reaction. 2AgNO3 + Cu ( Cu(NO3)2 + 2Ag. has a 74.2% yield. What mass of copper is required to obtain 100.0 g of silver? (4) 39.7 g. 5. Consider the reaction: Fe3O4 + 4H2 ( 3Fe + 4H2O (a) A 35.0 g sample of Fe3O4 ... ................
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