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Unformatted text preview: water leaks. Our apparatus had leaks, but we had to use it because it was the only one left to use. 3. Experimental Results . Trial Percent Yield 1 0.022% 2 0.022% 3 0.028% Average: 0.024% Standard Deviation: 0.024 ± 0.00346% Percent Error: -99.78% 4. Wet Sample . If the bicarbonate tablet was exposed to a high humidity atmosphere for several hours, the water in the air would react with the tablet, producing CO 2 and decreasing the mass of the tablet. 5. Partial Pressure of Water . If we ignored the partial pressure of water, the percent bicarbonate would be higher, because the total gas pressure we would see that the bicarbonate tablet gives off would include both the pressure of CO 2 and water. n total = n CO2 vs. n total = n CO2 + n water...
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This note was uploaded on 08/07/2009 for the course CH 116 taught by Professor March during the Spring '09 term at University of Alabama at Birmingham.
- Spring '09