Questions: 3. If you found that you need 0.2943 mols of copper, how many grams of copper do you need? (Use the molar mass of copper from above!)

Solution Steps

The molar mass of copper (Cu) is given as 63.546 g/mol.

To find the mass in grams, use the formula: \[ \text{mass} = \text{moles} \times \text{molar mass} \]

Substitute 0.2943 mols for the number of moles and 63.546 g/mol for the molar mass: \[ \text{mass} = 0.2943 \, \text{mol} \times 63.546 \, \text{g/mol} \]

\[ \text{mass} = 0.2943 \times 63.546 = 18.7071 \, \text{g} \]

Final Answer