Determination of Water Hardness and Ca2+ and Mg2+ in water by Complexometric Titration.

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Purpose. Describe the purpose of the lab, i.e. what is being measured and how are you measuring it? State your unknown number in this section. (1 paragraph, 1 paragraph = 4 sentences)
Background. Describe any necessary background for the lab. This section should sufficiently describe the experimental method and any calculation used to calculate the quantity measured. (3 paragraphs, 1 paragraph = 5 sentences)
Experimental. Summarize the experimental method and explain how each experimental step accomplishes the purpose of the lab. Omit numerical details as the important experimental data is presented in data/observations. A copy or close paraphrase of the handout instructions is not acceptable. Write experimental section in past tense. (3 paragraphs, 1 paragraph = 5 sentences)
Data/Observations. In this section, you are to report weights, chemical reactions, and any other observation you made that is relevant to the purpose of the lab. This section should contain any and all labeled graphs, tables, or figures that you used to analyze your results. You should include tables of experimental data that you used to calculate your result. This section ends with the report of your result, which has to include a statistical analysis. State your unknown number in this section. It is critical that you include all relevant data organized in tables.
Discussion. Evaluate the precision of your result(s). Evaluate the experimental method used to acquire the results. The discussion section should also include a thoughtful assessment of possible likely errors in the experiment (e.g. those that you either observed, or errors that you may have no control over). (2 paragraphs, 1 paragraph = 5 sentences)
Conclusion. Report the final result, with error estimates and units. (1 sentence)






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