Title:
Volumetric Analysis
Aim:
To determine the concentration of hydrochloric acid solution
Preparation of standard solution:
●
Outline a procedure for the preparation of a suitable concentration of sodium carbonate. The
acid solution is approximately 0.1 mol/dm3 . The overall volume of the standard solution is 250
mL
Name a suitable indicator for the titration: _______________________________________
Outline the steps that would be taken for the titration:
Aim:
To determine the concentration of the hydrochloric acid solution
Apparatus:
Material:
Method (as outlined in previous page)
Results
Table showing
Burette reading/cm3
Final reading
Initial reading
Volume used
Discussion:
Calculate the number of moles of sodium carbonate used in titration
Calculate the number of moles of HCl used in titration
Determine the concentration of HCl in mol/dm3
Hence, determine the concentration of HCl in g/dm3
List three characteristics of a primary standard
Explain why sodium hydroxide was not used as a standard solution?
Define equivalence point of a titration:
Define the end point of a titration:
Explain your choice of indicator for this experiment:
Conclusion:
Further work:
Sketch the changes in pH during titration of 25 cm3 sodium carbonate solution with hydrochloric acid.
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