1.

Find number of electrons,if the mass of aluminium is given 3*10^7

Answer»

Explanation:GIVEN: mass of Al =3 x 10^7      APPLY: n mole=  given mass                MOLAR mass =26g                                       molar massafter we obtain n moles APPLY: n  ELECTRONS  = moles x AVAGADRO's NUMBER x n electrons of aluminium



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