If all free electrons of a aluminium ball of mass 2.7 g are removed. what will be the charge on the ball?
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charge on the ball is 2.89 × 10⁴ C
It has given that if all free electrons of a aluminium ball of mass 2.7 g are removed.
we have to find the charge on the ball.
no of moles = given weight/molecular weight
= 2.7g/27g/mol
= 0.1 mol
charge = no of mole × valency × charge on each electron × Avogadro's number
= 0.1 mol × 3 × 1.6 × 10^-19 × 6.023 × 10²³
= 0.3 × 1.6 × 6.023 × 10⁴
= 2.89× 10⁴ C
therefore, charge on the ball is 2.89 × 10⁴ C
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