Question

How many moles is 90.93 grams of aluminum?

Answer 1

Answer:

C) 3.37 moles .

Explanation:

Hello,

In this case, considering that the atomic mass of aluminum is 27.0 g/mol, the moles in 90.93 g of aluminum are computed via the following dimensional analysis:

$n=90.93 gAl*\frac{1molAl}{27.0gAl} \\\\n=3.37molAl$

Thus, answer is C) 3.37 moles .

Best regards.