1. Shaw your calculation of the molarity of Cart in the sample. Use one trial as an example. 2. Show your calculation of the average molarity of Car in the sample.

Final buret reading, EDTA
21. 6 ml
46. 0 ML
Initial buret reading, EDTA
Oom L
21.6 ML
Volume used, EDTA
21. 6m L
24.6/ ML
Molarity of Cart in the sample
Average Molarity of Cat in the sample
Average water hardness in CaCOs mmol/L
Show your calculation in your lab report:
1. Shaw your calculation of the molarity of Cart in the sample. Use one trial as an example.
2. Show your calculation of the average molarity of Car in the sample.
3. Show your calculation of the average water hardness in CaCO3 mmol/L.
4. Show where the classification of water hardness for your sample using the chart on page 1

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