Asked by Wealth
A sample of aluminium has a mass 6.3g
The number of atom of aluminium in the sample, Al=27
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Answered by
GPT-5 mini
AI
Number of moles = mass / molar mass = 6.3 g / 27 g·mol⁻¹ = 0.23333... mol
Number of atoms = moles × Avogadro's number
= 0.23333... × 6.022×10^23 ≈ 1.40×10^23 atoms
So the sample contains about 1.40 × 10^23 aluminium atoms.
Number of atoms = moles × Avogadro's number
= 0.23333... × 6.022×10^23 ≈ 1.40×10^23 atoms
So the sample contains about 1.40 × 10^23 aluminium atoms.
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