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Exp 05 Percent Yield Lab
Exp 05 Percent Yield Lab
1. What is the mass in grams of the copper(II) chloride dihydrate (CuCl2·2H2O) used in this experiment?
2. Based on the mass of copper(II) chloride dihydrate used, what is the theoretical maximum mass of Cu(s), in grams, that can be produced from this chemical reaction? Round your final answer to 3 significant figures.
Relevant elemental molar masses:
H: 1.008 g/mole
O: 16.00 g/mole
Mg: 24.31 g/mole
Cl: 35.45 g/mole
Cu: 63.55 g/mole
3. What is the mass in grams of the magnesium metal used in this experiment?
4. Based on the mass of magnesium metal used, what is the theoretical maximum mass of Cu(s), in grams, that can be produced from this chemical reaction? Round your final answer to 2 significant figures. This analysis is to ensure we are using an excess amount of magnesium metal.
Relevant elemental molar masses:
H: 1.008 g/mole
O: 16.00 g/mole
Mg: 24.31 g/mole
Cl: 35.45 g/mole
Cu: 63.55 g/mole
5. What is the mass in grams of copper metal recovered at the end of the chemical reaction?
6. Based on the amount of copper metal that is actually produced, what is the percent yield for this experimental process? Round your final answer to 2 decimal places.
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