Final answer:
The mass of 4.3 moles of aluminum is approximately 115.914 grams, calculated by multiplying the number of moles (4.3) by the molar mass of Aluminum (26.98 g/mol).
Step-by-step explanation:
The mass in grams of 4.3 moles of Aluminum can be determined by using the molar mass of aluminum. The molar mass of aluminum is 26.98 g/mol, which means that one mole of aluminum weighs 26.98 grams. To find the mass of 4.3 moles, you multiply the number of moles by the molar mass:
Mass = number of moles × molar mass of Aluminum
Mass = 4.3 moles × 26.98 g/mol
Mass = 115.914 grams (rounded to three significant figures)
Therefore, 4.3 moles of aluminum have a mass of approximately 115.914 grams.