Question

The difference is the mass of 100 mole of each of sodium atoms and sodium ions in 5.48g
Calculate the mass of an elect
and ion.
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Answer 1

A sodium atom and ion, differ by one electron. For 100 moles each of sodium atoms and ions there would be a difference of 100 moles of electrons. Mass of 100 moles of electrons= 5.48002 g Mass of 1 mole of electron = 5.48002 / 100 g Mass of one electron = 5.48002 /100 × 6.022 ×1023 = 9.1 ×10-28g = 9.1×10-31 kg