nikkixmartinezx nikkixmartinezx
  • 09-09-2020
  • Chemistry
contestada

How many moles is 90.93 grams of aluminum?
A)2453.47 moles
B)6.02x1023 moles
C)3.37 moles
D)2.107x1024 moles

Respuesta :

sebassandin
sebassandin sebassandin
  • 14-09-2020

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:

[tex]n=90.93 gAl*\frac{1molAl}{27.0gAl} \\\\n=3.37molAl[/tex]

Thus, answer is C) 3.37 moles .

Best regards.

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