What is the mass of one mole of aluminium oxide, Al2O3?
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Card 7
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What is the percentage by mass of copper in copper (II) carbonate, CuCO3?
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Card 8
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A student made some magnesium oxide by burning magnesium in air. The student obtained a yield of 55%. Suggest two reasons why the yield was less than 100%
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Card 9
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What is the empirical formula of vanadium oxide that contains 56% of vanadium?
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Card 10
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Calculate the mass of zinc chloride that you can make from 6.5g of zinc. Zn + 2HCl -> ZnCl2 + H2
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Card 11
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Calculate the percentage yield if 9.0g MgSO4 was made from 4.0g MgO
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Card 12
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What information can be obtained from the molecular ion peak in a mass spectrum?
