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CHM111L - Experiment 4: 11/02/09 - 11/06/09

Analysis of CO2 in Breath

Instructions: Input your pertinent data below. Each member of a group needs to enter the group's results. The only entry that will be used directly in the lab report is the %CO2 and possibly the "Identification" .

Your write-up should include a table of the class's %CO2's and any conclusions you can draw about range of %CO2, and the accuracy of the measurement done using the different indicators.

Section ID
Length of time breath held seconds
Average volume HCl used for HCO3- portion of pH titration mL
%CO2 in Breath (using HCl volume from pH measurement) %
2nd Indicator

Volume HCl used between indicator color changes

 mL
Breath Temperature oC
Not Used
Not Used
Not Used
Not Used
Not Used
Comments:


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