Analytical Problem Exchange

Use the problems in this forum to jump-start your in-class exercises, out-of-class assignments, or use them in exams.

Gravimetric Method for Analysis of Phosphorous: Analysis of Procedure

20 June 2011

Equilibrium Chemistry, Essay Question, Gravimetry

Once upon a time, a common method for determining phosphorous was to convert it to phosphate, precipitate it as magnesium ammonium phosphate, MgNH4PO4, and ignite it to form magnesium pyrophosphate, Mg2P2O7. The […]

Solubility of Milk of Magnesia

12 March 2011

David Harvey

Equilibrium Chemistry, Essay Question

Milk of Magnesia, or MOM, is a suspension of Mg(OH)2. One method for determining the amount of Mg(OH)2 in MOM is to precipitate the Mg2+ as MgNH4PO4. Because this precipitate includes a […]