Anonymous
Anonymous asked in Science & MathematicsChemistry · 1 month ago

What mass of oxygen gas reacted with the magnesium ?

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  • 1 month ago

    1.10 g O2

    You can get to this two ways. 

    1) You can subtract the mass of the crucible + Mg from the Mass of the crucible + MgO

    2) Calculate the mass of Mg (subtract mass of empty crucible from mass of crucible + Mg)

    Then calculate the mass of MgO (Subtract mass of empty crucible from mass of crucible + MgO)

    Finally, subtract mass of Mg from mass of MgO

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