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Aim To determine the concentration of a sulphuric acid by titration against a standard solution of sodium carbonate just prepared

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Introduction

CHAN CHI HEI 6LS(1) Title Standardisation of sulphric acid Aim To determine the concentration of a sulphuric acid by titration against a standard solution of sodium carbonate just prepared Result Trial 1st 2nd 3rd Final Burette Readings/cm3 10.20 14.80 19.50 24.10 Initial Burette Readings/cm3 5.00 10.20 14.80 19.50 Volume used/ cm3 5.20 4.60 4.70 4.60 Mean volume used/ cm3 4.63 Calculation Na2CO3(aq)+H2SO4(aq)-->Na2SO4(aq)+H2O(l)+CO2(g) ...read more.

Middle

/ (4.63/1000) = 0.5399M Discussion During the experiment ,there may be some possible error and some of them can be minimized. First, the water inside the burrete may affect the concentration of sulphuric acid. To prevent this , we need to rinse the burrete with sulphuric acid. ...read more.

Conclusion

Gloves and safety goggles should be weared to prevent the acid contact with our bodies. After doing the experiment , I think some improvements can be made. During titration , I find that the sodium carbonate solution contain some white solid. And they are probably the undissolved sodium carbonate. In order to solve this problem , next time before the titration begins, strring the sodium carbonate solution is necessary. Conclusion The concentration of the sulphuric acid is 0.539M. ?? ?? ?? ?? ...read more.

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