Determination of Na2CO3 in an Impure Sample

1. Amount (moles) Na2CO3 reacted with HCl

2. Mass (g) Na2CO3 reacted with HCl

3. Mass (g) Na2CO3 present in the sample

4. Mass Percent Na2CO3, % (w/w) Na2CO3

Table 2. Determination of Na2CO3 in an impure sample Balanced chemical Equation: Na2CO3+2HCl2NaCl+H2O+CO2 DetailsMass(g)ofbeakertimpureNa2CO3sampleMass(g)ofbeaker-impureNa2O3sampleMass(g)sampleAverageMolantyofHClsolutionFinalBuretKeadingInitialBuretReadingVelume(mL)oftheHalsolutiondeliveredTrial110.72510.6130.11218.29018.29Trial210.74510.6360.1090.115618.78117.78Trial310.73910.6320.10717.970.517.47 Amount (moles) Na2CO3 reacted vith HCl Man(g)Na2CO3 reacted with HCl Mass (g)Na2OO3 present in the sample Mass Percent Na2CO3,%0(w/w)Na2CO3 Average %(w/w)Na2CO3 Deviation Standard Deviation Ooefficient of Variation (\%, RSD)