The given table should be completed.
|Mass of sample||Moles of sample||Atoms in sample|
|5.00 g Al|
|0.00250 mol Fe|
|0.00250 g Mg|
Number of moles is related to mass and molar mass as follows:
Here, m is mass and M is molar mass.
According to Avogadro’s law, 1 mole of a substance contains atoms. This is known as Avogadro’s number and denoted by symbol.
Thus, number of molecules can be calculated from number of moles using the following conversion factor:
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