Spectrophometric Studies of the Iron(III)-Salicylic Acid Complex Ion
Purpose: To determine the number of SAL ligands which combine with iron (III) to form
iron(III)-SAL complex ion, as well as the salycilic acid content of an unknow
ANALYSIS OF CALCIUM CONTENT OF A
COMMERCIAL CALCIUM TABLET
AUTHOR NAMES Jeanne Askins*, Nicholas Dowden, Carla Paulo.
AUTHOR ADDRESS Texas A&M University, College Station, TX.
AUTHOR EMAIL ADDRESS firstname.lastname@example.org
RECEIVED DATE December 12th, 2010.
Determination of Mg by EDTA
Purpose: To determine the amount of Mg in a Magnesium Oxide compound by titrating it
Unknown #: 6C
Reaction: Mg2+ + H2Y2- MgY2- + 2H+
Safety Factors: Gloves and goggles must be worn during the
Purpose: To titrate a solution of sodium carbonate with hydrochloric acid and to
determine the pH using potentiometric analysis and to determine the percentage of
Na2CO3 in unknown.
Unknown #: 10C 40%
Determination of Fluoride
Purpose: To determine the F- ion content by using ion-selective electrodes. A salt, a
commercial mouthwash, and tap water will be analyzed.
Unknown #: 8D
0.02%(w/v) FImportant Eq
Kjeldahl Ammonium Analysis
Purpose: To determine the amount of ammonium in an unknown compound using the
Kjeldahl analysis method.
Unknown #: Unknown 5F
Important Equations: NH3 + H3BO3 NH4+ + H2B03HCl + H2BO3- H3BO3 + ClSafety Fact
Analysis of Vitamin C
Purpose: To determine the percentage of ascorbic acid in an unknown by oxidizing it
Unknown #: Unknown 3I
Important Equations: C6H806 (Ascorbic Acid)+ I2 C6H6O6 + 2H+ + 2IIO3- + 5I- + 6H+ 3H2O + 3I
Purpose: To determine the percent of KHP in a solution and to determine the amount of
acetylsalicylic acid in an aspirin tablet using a standardized solution of NaOH.
Unknown #: KHP unknown: 1B