Question

3. The number of Al3+ ions in 0.051 g of aluminium
oxide are (Atomic mass of Al = 27 u, O = 16 u)
(a) 6.022 x 1020
(6) 3.3 X 1020
(c) 2.2 x 1020
(d) 6.022 x 1023​

Answer 1

Answer:

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