A sample of ore contains many impurities including zinc oxide (ZnO). To determine the percentage purity of the zinc oxide a 10g sample of the ore is reacted with 0.5M (concentration) HCl acid according to the equation: Zn + 2HCl --> ZnCl2 + H2O. If 100dm3 of acid are reacted to react fully with the ore, determine the percentage purity of ZnO.
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