Tuuli7 Posted November 3, 2010 Report Share Posted November 3, 2010 I have encountered a problem with calculating the percentage error for the enthalpy change. In the reaction solid sodium carbonate was added to aqueous sulfuric acid. I already calculated percentage uncertainties for m (acid) and delta T, and added them. However, I suppose that is not the end, and I should also calculate the percentage uncertainty either for the amount (in this experiment amount of acid = amount of carbonate) or for the mass of carbonate. I don't know which one to calculate. In the textbook I have they also calculate the % uncertainty for K, however I don't think it should be included, but I might be wrong. I know how to calculate next steps, but I am stuck here. I would really appreciate any help. Reply Link to post Share on other sites More sharing options...
Drake Glau Posted November 4, 2010 Report Share Posted November 4, 2010 Na2CO3 + H2SO4 ----> Na2SO4 + H2O + CO2Where is this K? o.OAlso %error is the (absolute value of the experimental value minus the literature value)/literature value, then *100 to make a %. If this doesn't help I'm not sure what you're asking then =/ Reply Link to post Share on other sites More sharing options...
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