the mass of half mole of electron is about? (mass of electron = 9.1×10^-28g)
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9.1×10^-28÷2
then you will get
9.1×10^-28/2
=9.1×10^-28-2
=9.1×10^-30
then you will get
9.1×10^-28/2
=9.1×10^-28-2
=9.1×10^-30
mohito:
bro the options r (a) 0.546mg (b)0.273mg (c) 1.092mg (d) 4.55mg
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