Answer:
Mass
of 1 mole of aluminium atom = Molar mass of aluminium = 27 g mol-1.
An aluminium atom needs to lose three electrons to become an ion, .
For one mole ofion, three moles of
electrons are to be lost.
The mass of three moles of electrons
Molar mass of
= 26.9984 g
Difference = 27 - 26.9984
= 0.0016 g
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