Table 1. pH of water samplesSample No.Water SamplespH1Tap water from household6.592Water from creek7.353Water from river7.354Unknown sample7.00Table 2. Absorbance of SamplesTable 3. Calibration Curve Data*Sample No.AbsorbanceAbsorbance3-Concentration of PO4Ions, ppm(1 pt each)11.331.00.05023.262.00.0930.893.00.13740.0994.00.1855.00.230*Provided by the instructorII. GraphDetermination of Phosphate Concentration3-1. Using Excel, plot the concentration of PO4* (x-axis) vs. absorbance (refer to Table 3) The olotmust show the equation of the best-fit (or trend) line of the graph. Attach the graph below

For the given calibration curve data in Table-3, we have to draw an excel plot with phosphate ion,…

Table 1. pH of water samples Sample No. Water Samples pH Tap water from household 6.59 Water from creek 7.35 Water from river 7.35 4 Unknown sample 7.00 Table 2. Absorbance of Samples Table 3. Calibration Curve Data Sample No. Absorbance 3- Concentration of PO4 Absorbance (1 pt each) Ions, ppm 1 1.33 1.0 0.050 2 3.26 2.0 0.093 3 0.89 3.0 0.137 4 0.099 4.0 0.185 5.0 0.230 *Provided by the instructor II. Graph Determination of Phosphate Concentration 3- 1. Using Excel, plot the concentration of PO4 (x-axis) vs. absorbance (refer to Table 3) The olot must show the equation of the best-fit (or trend) line of the graph. Attach the graph below 1. 2. 3.

Table 1. pH of water samples Sample No. Water Samples pH Tap water from household 6.59 Water from creek 7.35 Water from river 7.35 4 Unknown sample 7.00 Table 2. Absorbance of Samples Table 3. Calibration Curve Data Sample No. Absorbance 3- Concentration of PO4 Absorbance (1 pt each) Ions, ppm 1 1.33 1.0 0.050 2 3.26 2.0 0.093 3 0.89 3.0 0.137 4 0.099 4.0 0.185 5.0 0.230 *Provided by the instructor II. Graph Determination of Phosphate Concentration 3- 1. Using Excel, plot the concentration of PO4 (x-axis) vs. absorbance (refer to Table 3) The olot must show the equation of the best-fit (or trend) line of the graph. Attach the graph below 1. 2. 3.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.22QAP

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