What is the effect of the following situations given, on the reported concentration of the HCl solution which was determined by titration with standard NaOH? 1. A drop of the NaOH titrant adheres to the side of the buret (because of a dirty buret) between the initial and final readings for the titration (also called “clean glass” error). 2. For the standardization of the NaOH solution, the endpoint was consistently reproduced to a dark pink color. While the endpoint for the titration of the sample solution was consistently reproduced to a faint pink color. 3. An air bubble was present inside the nozzle of the buret containing the titrant and remained there throughout the titration. 4. Some of the acid in the flask spilled out during titration. 5. The HCl solution was transferred into a wet Erlenmeyer flask prior to titration.
What is the effect of the following situations given, on the reported concentration of the HCl solution which was determined by titration with standard NaOH?
1. A drop of the NaOH titrant adheres to the side of the buret (because of a dirty buret) between the initial and final readings for the titration (also called “clean glass” error).
2. For the standardization of the NaOH solution, the endpoint was consistently reproduced to a dark pink color. While the endpoint for the titration of the sample solution was consistently reproduced to a faint pink color.
3. An air bubble was present inside the nozzle of the buret containing the titrant and remained there throughout the titration.
4. Some of the acid in the flask spilled out during titration.
5. The HCl solution was transferred into a wet Erlenmeyer flask prior to titration.
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