Amperometric titration

Truc-Nhi Do Separation of a Mixture The purpose of this lab was to separate a mixture, calculate the percent composition by mass, and find percent error. I first started out by taking the mass of each component of the lab. I used the infiltration method to allow the salt and water solution, a blended mixture, to pass through the filtration paper and into the beaker. A trick to know if something is a solution is to see is it has the aqueous sign (aq) in the formula, like NaCl(aq). This step…

Defining the Problem/Question Task 3 was to design and test a series of superabsorbent pillows to identify a quantitative trend that can efficiently clean-up spills of heavy metal ion solutions. This investigation has value to companies or people they want to find a way to efficiently clean-up spills of toxic metals in bodies of waters that could damage species in and around these waters. Experimental Design and Procedure In order to efficiently clean-up spills of heavy metal ion solutions…

Experiment 3 titled “Physiologically Important IONS” and the purpose of this lab is to become familiar with metal and nonmetal ions and mostly important in biological and physiological processes. Also, to become familiar with tests to determine the presence or absence of ions as well as to estimate approximate amount. To begin, when a solution is tested, make sure you observe everything and note everything. This is lab, we will test some positive ion and determines if it’s an anion or a cation.…

two of NaOH can sneak out before the valve is closed. Those few missed drops as well as excess NaOH in titration can affect the accuracy of the results. Human error is almost always a factor for example when measuring any values without digital assistance leaves room for the naked eye to make mistakes. As far as the second part of the experiment was, the 0.0025% deviation indicates that the titration was accurate. The ending molar mass (202.59 g/mol) of the mystery acid points to two…

Collect the sample to be tested in a 300 mL BOD bottle taking special care to avoid adding air to the liquid being collected. Fill bottle completely and add stopper. 2. Remove bottle stopper and add 1 mL of the manganous sulfate solution at the surface of the liquid. 3. Add 1 mL of the alkaline-potassium iodide-sodium azide solution at the surface of the liquid. 4. Replace the stopper, avoid trapping air bubbles and shake well by inverting the bottle several times. Repeat shaking…

The experiment performed provided insight on the importance of acid-base interactions and the pH of solutions that are involved in a variety of aspects including industrial, environmental, and biological contexts. Back titration was used to determine the number of moles of HCl acid that were neutralized by a single tablet of several variations of commercial antacids. In theory, the antacid that neutralized the largest number of moles of acid was found to be the most effective. The results…

Title- Experiment #9- Acid Base Titrations II: Potentiometric and Indicator Titrations Introduction- In this experiment, the reactions of three different acids with a strong base are studied by observing how the pH of the solution changes as the titrant is added. A plot of pH versus amount of titrant added will be constructed. Such a curve is called a pH titration curve. The equivalence point of the reaction will be determined from an analysis of the pH titration curve, and by the use of…

Determining Percent Composition of Unknown Copper Ore Sample Iodine-thiosulfate Method: An Analytical Method The objective of this experiment is to eliminate all interfering species from a sample of unknown copper ore in order to later determine pure copper content. Copper ore can be found in a mineral that contains pure copper and other species that is mined and can later have copper extracted from them (Taher, 1999). To eliminate all interfering species, such as Iron, Arsenic, and…

This study involves the use of redox titration to determine the amount of oxalic acid in the sample solution. The analyte solution containing oxalic acid was added with sulfuric acid and heated prior to the titration with permanganate. The persistent pink color signaled the end of the titration. The amount of the oxalic acid in the solution was found to be 8.941%. The redox titration was precise in the quantification of oxalic acid with a standard deviation of 1.327%. Introduction One of the…

Table: Summary of method validation parameter results Validation parameters Acceptance criteria Results Aminexil Minoxidil System suitability Theoretical plates should be NLT 2000 2411 11620 The tailing factor should be NMT 2.0 1.50 1.10 The RSD of five replicate injection should be NMT 2.0% 0.42 0.90 Specificity Peak of Aminexil and Minoxidil should be pure Peaks of Aminexil and Minoxidil are pure. The degradation products should be well resolved from Aminexil and Minoxidil peaks All…