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(Solved) Similar to copper, magnesium also reacts with the oxygen in the air when heated to form magnesium oxide.


Q8: Similar to copper, magnesium also reacts with the oxygen in the air when heated to form magnesium oxide. Given the experimental data in the table below, what is the empirical formula of magnesium oxide? The molar mass of magnesium is 24.31 g/mol and the molar mass of oxygen is 16.00 g/mol. To receive full points for this question, list every step of your calculation.

mass of empty crucible

64.000 g

mass of crucible with magnesium before reaction

65.125 g

mass of crucible after heating

65.866 g

(4 pts.)


Q9: The reported molar mass for the copper oxide formed in experiment 1 is 79.55 g/mol. What is the molecular formula of the oxide formed in experiment 1? The molar mass of copper is 63.55 g/mol and the molar mass of oxygen is 16.00 g/mol. To receive full points for this question, list every step of your calculation. (3 pts.)

 


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