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3. (2 marks) Fill in the data table: mass of beaker (9) mass of beaker plus copper oxide () mass of copper oxide (g) 57.8699229992 7. (2 marks) Calculate the observed empirical formula of your copper oxide, Le, the formula based exactly on your expe

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Var mass of copper onude = 0.2119 Mass of copper = 0.1449 0.0019 Mass of onggen 0.002 Crember of roles .co - 63.5-4 tone Mass

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