Titrimetric Redox Determination of Iron in an Ore Using Dichromate
CHM 2290 Experiment #5 Titrimetric Redox Determination of Iron in an Ore Using Dichromate A. Introduction Many chemical compounds can be oxidized or reduced completely by reacting them with suitable reagents. Oxidation-reduction reactions can be utilized for quantitative determinations if a suitable means of detecting ...continues
Hi there, I would like to know what method I could in a academic chemical laboratory to determine the nitrogen content in water. I would like to know how I could then determine the quality of the water. Thanks
Acid-base titration & analytical chemistry
A 0.213-g sample of uranyl(VI)nitrate, UO2(NO3)2, is dissolved in 20.0 mL of 1.0 M H2SO4 and shaken with Zn. The zinc reduces the uranyl ion, UO2 (with a charge of 2+), to a uranium ion, Un+ (where n+ is the charge of the uranium ion). To determine the value of n, this solution is titrated with KMnO4. Permanganate is reduced to ...continues
A 0.7834 g sample of primary standard KHP was titrated with 38.45 ml of NaOH solution to a phenolphthalein end-point? What is the molarity of the NaOH solution?
A student decided to measure the amount of salt that would dissolve in 50 ml of water at different temperatures. The student found that the solubility at 10 degrees centigrade (10° C), was .56 grams of salt. At 40° C, 2.35 grams dissolved and the solubility at 70° C was 3.85 grams of salt. Create a "Best fit" graph for the e ...continues
Titrations: Finding Concentration
A 35.00 mL solution containing an unknown concentration of pyruvic acid required 25.13 mL of 0.2011 M NaOH to reach the end point. What is the concentration of the pyruvic acid solution ?
Titrations: Finding Mass Percent of Arsenic in a Pesticide
The arsenic in a 1.0211-g sample of a pesticide was converted to H3AsO4 by suitable treatment. The acid was then neutralized and exactly 40.00 mL of 0.05922M AgNO3 was added to precipitate the arsenic quantitatively as Ag3AsO4. The excess Ag+ in the filtrate and in the washings from the precipitate was titrated with 14.76 mL o ...continues
