2CLabManual201303

2CLabManual201303

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Unformatted text preview: DTA solution you just entered and the corresponding dry unknown sample masses entered earlier, calculate the percent mass of calcium carbonate in the unknown sample mixture. Enter the calculated percent mass of calcium carbonate in the dry unknown sample for each of the three acceptable trials. Be sure to enter your mass percentages to the correct number of significant digits and in the corresponding order that you entered your masses of your dry unknown samples and volumes of your EDTA previously. The dry unknown sample mass you entered for entry #1 above should correspond to the percent mass of calcium carbonate you enter for entry #1 here. The percent mass of calcium carbonate in the dry unknown sample is taken as the average of the three trials. Enter the average mass percent of calcium carbonate in the dry unknown samples. Please enter the standard deviation of the average mass percent of calcium carbonate in your dry unknown samples. Please enter the calculated 90% confidence limit for the average percent mass...
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This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.

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