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A coin is made up of All and weight 0.54gm.It has a square shape and it's diagonal measures 17mm. It is electrically neutral and contains equal amounts of positive and negative charges. The madnitude of these charges is?

A coin is made up of All and weight 0.54gm.It has a square shape and it's diagonal measures 17mm. It is electrically neutral and contains equal amounts of positive and negative charges. The madnitude of these charges is?

Grade:12

1 Answers

deepak
84 Points
4 years ago
the molecular mass of al = 27gms
then the no of mol”s of al = 0.54/27=0.02
we know that
1mol of any substance has a +ve charge of +1faraday and a negative charge of -1faraday (1faraday=96485.3 C)
hence the total positive charge in 0.02 mol is +1929.706 C
and
the total -ve charge in 0.02 mol is -1929.706 C
hope this was useful

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