Multiple Choice
How many moles are present in 1 micromole?
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2. Atoms & Elements
Mole Concept
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How many grams of aluminum are present in 3.0 moles of aluminum (Al)? (Atomic mass of Al = 27.0 g/mol)
A
27.0 g
B
81.0 g
C
3.0 g
D
9.0 g
Verified step by step guidance1
Identify the given information: the number of moles of aluminum (Al) is 3.0 moles, and the atomic mass of aluminum is 27.0 g/mol.
Recall the relationship between moles, molar mass, and mass: \(\text{mass} = \text{moles} \times \text{molar mass}\).
Substitute the known values into the formula: \(\text{mass} = 3.0\ \text{moles} \times 27.0\ \text{g/mol}\).
Multiply the number of moles by the molar mass to find the mass in grams.
Express the final answer as the mass of aluminum in grams corresponding to 3.0 moles.
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