Multiple Choice
Why is the concept of moles important in chemistry?
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2. Atoms & Elements
Mole Concept
Multiple Choice
A copper sample has a mass of 63.5 g. How many moles of copper are present in the sample? (Atomic mass of Cu = 63.5 g/mol)
A
0.50 mol
B
1.00 mol
C
2.00 mol
D
0.10 mol
Verified step by step guidance1
Identify the given information: the mass of the copper sample is 63.5 g, and the atomic mass of copper (Cu) is 63.5 g/mol.
Recall the formula to calculate moles from mass and molar mass: \(\text{moles} = \frac{\text{mass}}{\text{molar mass}}\).
Substitute the given values into the formula: \(\text{moles of Cu} = \frac{63.5\ \text{g}}{63.5\ \text{g/mol}}\).
Perform the division to find the number of moles (do not calculate the final value here, just set up the expression).
Interpret the result as the amount of substance in moles present in the copper sample.
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