Titration

temprature which was found using the data logger. • The enthalpy change can then be calculated after all these values are found. Each trial can then be avaraged to find a more accurate result for our experiment. Conclusion and evaluation: The titration should be carried out carefully while making sure the color of the neutralized solution is the same for all the trials. This can be done by keeping the first sample aside that can be used for reference of the other trials can do this. The…

the first green colour appeared. The concentration of hydrochloric acid was found to be 0.2508 mol L-1. Introduction Standardisation is a process which is carried out to determine the actual molarity of a solution. Titration is a technique that is often used in standardisation. In titration, a solution is…

Introduction This accuracy lab of titration report experiment will discuss how to find the unknown substance molarity. By using some of the lab equipment to help guide and identify the molarity of the unknown substance. I believe that it will take around three hundred drops of sodium hydroxide (NaOH) for it to be able to reach to its endpoint of the unknown substance. My reason behind my hypothesis is… Methods In this lab experiment we use a buret to…

In the second part of the experiment, KHT was added to solutions of different potassium ion concentrations. Similar to the first part, the concentration of HC4H4O6- was calculated through titrations of 0.05 M KCl and 0.1 M KCl solutions with known NaOH concentrations. The total concentration of K+ for the solutions with the common ion is equal to the K+ concentrations from the KCl solutions and the K+ concentration from the KHT itself, which…

Purpose: By doing this experiment, students will properly complete a redox titration well also determining the amount of hypochlorite ions present in the commercial bleach given. Introduction: Commercial Bleach and other commercial products like hair colouring agents, contain oxidizing agents. Oxidizing agents are substances that remove electrons from one or more reactants and thereby oxidizes it, whereas reducing agents are substance that give electrons to other reactant. There is some…

As it is required that you rely on the human eye to determine when the indicator displays the end-point of the titration. Repeating an experiment using alternate equipment is crucial in revealing the accuracy of the titration. Different equipment assists in eliminating almost all forms of systematic errors. However, time constraints often determine whether or not this can be achieved, and in this case, there was not…

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…

The purpose of this experiment was to prepare and standardize a sodium hydroxide solution as well as determine the molar concentration in as strong acid and the percent by mass of acetic acid in vinegar. We used volumetric analysis, also known as titration, in both experiments. The average molar concentration for NaOH was 0.2749 mol/L while the average molar concentration of the acid solution was .2493 mol/L.The average percent by mass of acetic acid in vinegar was found to be 12.3 %…

The purpose of today’s lab was to determine how effective antacids are at neutralizing HCl. This experiment required us to place 3 antacids tablets into 3 Erlenmeyer flasks. Next we were required to add 50.00 mL of 0.500M HCl and five drops of phenolphthalein. Finally, we needed to titrate NaOH into the flasks. Each antacid brand required a different amount of NaOH in order for it to be completely titrated. The data collected from the experiment allowed each group to calculate the cost…

vitamin C/ml iodine solution Experiment B: Vitamin C titration using fresh fruit sample to determine the content The tabulated experimental data for this experiment is shown below (Table 2). In this experiment, the amount of vitamin C was calculated by multiplying the standardization factor with a used iodine solution. That is, the amount of vitamin C in 30ml of 93.54 g mandarin orange juice was 11.514mg. Table 2: Experimental data for Vitamin C titration using fruit sample (Mandarin orange)…