The mineral tri-magnesium phosphate (Mg3(PO4)2, denoted TMP) is widely used in the pharmaceutical and food industries. A pharmaceutical company needs to prepare TMP in their labs. They mix 0.5 liter MgCl2 solution (0.2 M) with 0.5 liter of 0.1 M K2HPO4 solution. In order to precipitate TMP in the required amount, the pH is controlled by either acid or base dosages. a. Write a parametric equation to calculate the minimum pH value required for TMP precipitation in the mixture. In other words, write an equation for calculating the pH for tri-magnesium phosphate PP = 0. Substitute in the equation all the known values, in order to have the pH as the only unknown. b. What is the acidity of the mixture, assuming that no precipitation took place? Define exactly which acidity you are referring to, and mention whether it is possible to determine this acidity in the lab. Explain! c. Write down the steps in a numerical procedure for calculating the PP of TMP? Determine exactly how each parameter used in your steps changes in each numerical step. That is, do not write "recalculate alkalinity", rather write the equation showing what will be the change in alkalinity.

The mineral tri-magnesium phosphate (Mg3(PO4)2, denoted TMP) is widely used in the pharmaceutical and food industries. A pharmaceutical company needs to prepare TMP in their labs. They mix 0.5 liter MgCl2 solution (0.2 M) with 0.5 liter of 0.1 M K2HPO4 solution. In order to precipitate TMP in the required amount, the pH is controlled by either acid or base dosages. a. Write a parametric equation to calculate the minimum pH value required for TMP precipitation in the mixture. In other words, write an equation for calculating the pH for tri-magnesium phosphate PP = 0. Substitute in the equation all the known values, in order to have the pH as the only unknown. b. What is the acidity of the mixture, assuming that no precipitation took place? Define exactly which acidity you are referring to, and mention whether it is possible to determine this acidity in the lab. Explain! c. Write down the steps in a numerical procedure for calculating the PP of TMP? Determine exactly how each parameter used in your steps changes in each numerical step. That is, do not write "recalculate alkalinity", rather write the equation showing what will be the change in alkalinity.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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