The atomic mass of aluminum is 26.982 u. How many aluminum atoms are in a 4.55 g sample of aluminum?

Name: The atomic mass of aluminum is 26.982 u. How many aluminum atoms are in a 4.55 g sample of aluminum?
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The correct answer is A because:1. Convert the mass of aluminum to grams: 4.55 g2. Convert the mass of aluminum to moles: 4.55 g / 26.982 g/mol = 0.1685 mol3. Convert the moles of aluminum to atoms: 0.1685 mol * 6.022 x 10^23 atoms/mol = 1.02 x 10^23 atoms

The Atomic Mass of Aluminum Is 26