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3 years ago

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How many moles of aluminum are in this aluminum can? Answer: ____________ (25 pts) Calculate the number of aluminum atoms in thi

s can. Answer: _______________ (25 pts) The Amount of Aluminum is 12.69g

1 answer:

Sonja [21]3 years ago

5 0

Answer:a)No of moles of Aluminium=0.4703

b)number of aluminum atoms=2.832 x 10^23 atoms

Explanation:

a)Given that The Amount/ Mass of Aluminum is 12.69g

We know that

No of moles =Mass/ Molar mass

Molar mass of Aluminium, Al is 26.982 g/mol

No of moles =12.69g/26.982 g/mol

No of moles =0.4703

Also

b) 1 mole of aluminium must contain 6.022 x 10^23 atoms of aluminium

which is known as Avogadro's constant.

Therefore, 0.4703 moles will contain 0.4703 x 6.022 x 10^23 atoms =2.832 x 10^23 atoms

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