Find the mass of the Al2O3 molecule
| December 3, 2020 | education
The mass of a molecule can be found by the formula:
m = M / Na
M – molar mass of the substance (kg / mol)
Na – Avogadro’s number (6 * 10 ^ 23 mol ^ -1)
First, let’s find the molar mass of Al2O3 using the periodic table:
M (Al2O3) = 27 * 2 + 16 * 3 = 54 + 48 = 102 g / mol = 102 * 10 ^ -3 kg / mol
Find the mass of the molecule:
m = 102 * 10 ^ -3 kg / mol: 6 * 10 ^ 23 mol ^ -1 = 1.7 * 10 ^ -25 kg
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