Iron Chloride And Ascorbic Acid Lab Report

During the experiment, .002 Molar (M) iron chloride (4 mL), FIT (~10 mg), and ascorbic acid (~.66 mg) were used. Samples were prepared using the iron chloride (.002 M) and diluting it with distilled water in a clean, dry test tube. To prepare a solution, one milliliter of iron chloride was measured in a graduated cylinder and placed into a test tube. Distilled water was added to the test tube using a measuring pipette. Amounts of distilled water added varied based on the desired molarity of the iron chloride solution. The test tube was swirled to mix the solution. A small amount of ascorbic acid was added to the test tube. The exact amount of ascorbic acid needed in the solution varied from .0002 grams and .00002 grams, but the electronic scale only weighed to the nearest .01

The test tube was swirled until the ascorbic acid had dissolved. A small amount of the compound FIT was added to the test tube solution. The FIT needed in the solution was between .003 grams and .0003 grams, depending on the concentration of iron, but the electronic scale prevented any accurate measurements. The test tube was swirled while the chemicals reacted to form a purple solution and until all the FIT was reacted upon. In total, six different samples were prepared, with molarities of .002, .001, .0002, .0001, .00015, and .00005. To make the samples with molarities of .0001, .00015, and .00005, 1 mL of iron chloride (.002 M) was measured using a clean, dry graduated cylinder and placed in a clean, dry beaker. Nine milliliters of distilled water were measured with a measuring pipette and added to the beaker. The beaker was swirled to mix the new .0002 M solution. This solution was used in place of the .002 M in the preparation of the last samples. To prepare the unknown soups, 1 ml of each soup was measured in a clean, dry graduated cylinder and placed in separate test tubes. A small amount of ascorbic acid was added