The atomic mass of aluminum is 26.982 u. How many moles of Al are there in a 4.56 g sample of aluminum?

Name: The atomic mass of aluminum is 26.982 u. How many moles of Al are there in a 4.56 g sample of aluminum?
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The correct answer is A.To convert grams to moles, we use the formula: moles = grams / molar mass. The molar mass of aluminum is 26.982 g/mol. So, 4.56 g of aluminum is equal to 4.56 g / 26.982 g/mol = 0.169 moles of aluminum.

The Atomic Mass of Aluminum Is 26