The discharge of phosphate in detergents to the environment has led to imbalances in the
Chapter 7, Problem 7.96(choose chapter or problem)
The discharge of phosphate in detergents to the environment has led to imbalances in the life cycle of freshwater lakes. A chemist uses a spectrometric method to measure total phosphate and obtains the following data for known standards: Absorbance (880 nm) Concentration (mol/L) 0 0.031025 0.10 2.531025 0.16 3.231025 0.20 4.431025 0.25 5.631025 0.38 8.431025 0.48 10.531025 0.62 13.831025 0.76 17.031025 0.88 19.431025 (a) Draw a curve of absorbance vs. phosphate concentration. (b) If a sample of lake water has an absorbance of 0.55, what is its phosphate concentration?
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