Which one of the following is not an objective of the Analysis of Phosphate in W

ID: 813938 • Letter: W

Question

Which one of the following is not an objective of the Analysis of Phosphate in Water experiment?

To determine the phosphate content of a water sample using a simple colorimeter.

All are objectives of this experiment.

To prepare a phosphate stock solution with a known concentration.

To prepare a series of standards from a stock solution.

To prepare and use a Beer's Law calibration curve.

To determine the phosphate content of a water sample using a simple colorimeter.

All are objectives of this experiment.

To prepare a phosphate stock solution with a known concentration.

To prepare a series of standards from a stock solution.

To prepare and use a Beer's Law calibration curve.

Analysis of phosphate in water can be done in colorimeter because phosphate produce color complex with a suitable reagent.

In this experiment, series of standards are prepared from a stock solution. This stock solution is a known concentration of phosphate solution.

Finally, a calibration curve is drawn and using Beer's law, the concentration of phosphate can be calculated.

Beer's law: absorbance = (molar extinction coefficient)*(pathlength)*(concentration)

Therefore, b. All are objectives of this experiment.

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