1. Prepare a 0.1mol silver nitrate solution.
2. Pipette a 10ml aliquot of the unknown sodium chloride solution into a conical flask.
3. Add approximately 50ml of distilled water and 1ml of chromate indicator to the conical flask.
4. Titrate the solution with the 0.1mol silver nitrate solution.
5. Observe the color change of the chromate indicator from cloudy to faint lemon yellow as the silver chloride precipitates.
6. Determine the concentration of the sodium chloride solution based on the volume of silver nitrate solution added during titration.
7. Record your results accurately and calculate the concentration of the unknown sodium chloride solution.
An unknown concentration of the sodium chloride is prepared and provided.
Titration: pipette a 10ml aliquot of unknown sodium chloride solution into a conical flask and added about the 50ml distilled water and 1ml of chromate indicator.
Titrate the sample with 0.1mol/Silver nitrate solution. Although the silver chloride that form is a white precipitate, the chromate indicator initially gives the cloudy solution a faint lemon yellow color.
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