Question

Total number of electrons in 81g of al+3 are

Answer 1

Hello!

✓ Mass of 1 mole Al₃⁺ = 81 g

✓ No. of electrons in 1 atom = 13

✓ No. of molecules in one mole of Al₃⁺ = $\sf 6.022 \:x\: 10^{23}$

Then,

$\boxed{\sf Total \:no. \:of \:e^{-} = \sf 7.82 \:x\: 10^{24}}$

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