Question

Aluminum has a density of 2.70 g/cm^3. How Many moles of aluminum are in a 13.2 cm^3 block of the metal substance? Fill in the template

Answer 1

Answer:

1.32 MOLES

35.64G / 27G/MOLE

Answer 2

Answer:Number of moles of Aluminim = 1.32 moles

Explanation:

Given the

Density of Aluminium = 2.70 g/cm³

Volume of Al block = 13.2 cm^3

Moles=?

 

 we will first determine the mass of Aluminium.

Density = mass/volume

2.70 g/cm³ = m/13.2 cm^3

mass = 2.70 g/cm³ × 13.2 cm^3

mass = 35.64 g

But the  number of moles of Aluminium is given as  

Number of moles = mass/molar mass

molar mass of aluminium=27 g/mol

Number of moles = 35.64 g/27 g/mol

Number of moles of Aluminim = 1.32 moles

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