Sulfate_analysis

Sulfate_analysis - Chem 125 Winter Name: _ Partner: _...

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Chem 125 Winter Name: ___________________________ Date of Experiment: ________________ Partner: __________________________ Lab (circle one): W 12 – 3 R 8 – 11 R 3 – 6 F 12 – 3 Partner: __________________________ Experiment 3: Sulfate Analysis Lab Report Due: Beginning of lab during week 4 (week of January 23 rd to 27 th ). Part 1: Absorbance of Standard Solutions In the table below, record the results of your observations for each of the standard solutions you made. Title this table (in the space below) and use units where appropriate. Raw Data Showing the Absorbance of different solutions with varying amounts of SO 4- Trial No. 10 ppm Absorbance 20 ppm Absorbance 30 ppm Absorbance 40 ppm Absorbance 1 .085 .204 .275 .354 2 .092 .193 .275 .325 3 (if needed) ------ ------- ------ .368 Average Abs. .089 .199 .275 .349 Attach a copy of your Excel graph you generated showing the relationship between concentration and average absorbance of the sulfate standard solutions. Part 2: Determination of the Concentration of an Unknown Solution In the table below, record the results of your absorbance measurements for your unknown sulfate solution. Title this table (in the space below) and use units where appropriate. Raw Data Showing the Absorbance of my Unknown Solution.
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Sulfate_analysis - Chem 125 Winter Name: _ Partner: _...

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