What is the mass, in grams, of 2.15 moles of aluminum (Al)? (Atomic mass of Al = 26.98 g/mol)

• A. 12.6 g
• B. 46.2 g
• C. 58.0 g
• D. 24.8 g

Answer: (C)

Verified step by step guidance

1. Identify the given information: the number of moles of aluminum (Al) is 2.15 moles, and the atomic mass of aluminum is 26.98 g/mol.
2. Recall the relationship between moles, molar mass, and mass: \(\text{mass} = \text{moles} \times \text{molar mass}\).
3. Set up the calculation using the formula: \(\text{mass} = 2.15\ \text{moles} \times 26.98\ \text{g/mol}\).
4. Multiply the number of moles by the molar mass to find the mass in grams (do not calculate the final value here).
5. Express the final answer as the mass of aluminum in grams corresponding to 2.15 moles.