Calculate the number of aluminum ions in 0.051g aluminum oxide (Al_(2)O_(3)). , CLASS 9 | ,

Calculate the number of aluminium ions in 0.051g of aluminium oxide (Al_(2)O_(3))

Aluminium oxide, Al_(2)O_(3) is

Calculate the number of aluminium ions present in 0.051 g of aluminium oxide. (Hint: The mass of an ion is the same as that of an atom of the same element. Atomic mass of Al = 27 u)

Calculate the number of moles in 162 g of Al,

One mole of potassium chlorate (KClO_(3)) is thernally decomposed and excess of aluminum is aluminium oxide (Al_(2)O_(3)) are formed?

Ruby is an example of crystal with aa chemical impurity .The crystal is mainly colorless aluminium oxide, Al_(2)O_(3) , but occasional aluminium ions . Al^(3+) , are replaced by ….. .

The Gibbs energy for the decomposition of Al_(2)O_(3) at 500^(@)C is as follow : (2)/(3)Al_(2)O_(3) rarr (4)/(3)Al+O_(2), Delta_(r)G= +960 kJ mol^(-1) The potential difference needed for the electrolytic reduction of aluminium oxide (Al_(2)O_(3)) at 500^(@)C is