This preview shows page 1. Sign up to view the full content.
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
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...
View Full Document
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.
- Spring '07