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    Any help on this question?

    On the extension question 4 it asks to explain why it is not necessary to calculate he percentage uncertainty in the volume of H2SO4 (aq) used.
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    (Original post by edwards.shan)
    Any help on this question?

    On the extension question 4 it asks to explain why it is not necessary to calculate he percentage uncertainty in the volume of H2SO4 (aq) used.
    Without knowing the full question it is impossible to answer your question with certainty.

    One possibility: did you use an excess of sulphuric acid in the experiment?
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    (Original post by TutorsChemistry)
    One possibility: did you use an excess of sulphuric acid in the experiment?
    Bingo.
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    (Original post by TutorsChemistry)
    Without knowing the full question it is impossible to answer your question with certainty.

    One possibility: did you use an excess of sulphuric acid in the experiment?
    The reaction was
    CuCO3•Cu(OH)2 + 2H2SO4 —> 2CuSO4 + 3H2O + CO2
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    (Original post by edwards.shan)
    The reaction was
    CuCO3•Cu(OH)2 + 2H2SO4 —> 2CuSO4 + 3H2O + CO2
    Great

    Whether you used excess sulfuric acid depends on the amount you added in your experiment. How much did you add, and how accurately? Did you just add until there was no more effervescence?
 
 
 

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