A white powder is known to be a mixture of magnesium oxide and aluminum oxide. 100cm3 of 2moldm-3 NaOH(aq) is just sufficient to cause the aluminum oxide in x grams of the mixture to dissolve. The reaction occurring is Al2O3 + 2OH- + 3H2O > 2Al(OH)4- 800cm3 of 2 moldm-3 HCl (aq) is just sufficient to cause all of the oxide in x grams of the mixture to dissolve. The reactions occurring are Al2O3 + 6H ---> 2Al3+ + 3H2O and Mg2+ +H2O. How many moles of each oxide are present in x grams of the mixture ? A. Aluminium Oxide 0.05, Magnesium Oxide 0.25

B. Aluminium Oxide 0.05, Magnesium Oxide 0.50

C. Aluminium Oxide 0.10, Magnesium Oxide 0.25

D. Aluminium Oxide 0.10, Magnesium Oxide 0.50