Titration

Acid-Base titration is defined as using a solution of known concentration and volume to find the concentration of a solution with known volume but unknown concentration. Acid-Base titration can be used when mixing strong acids and strong bases because strong acids and bases neutralize each other. Phenolphthalein indicators, substances that change color based on pH, can be used to determine when the titration is complete and when both of the solutions are neutralized. In this experiment, Acid-Base

Abstract The concentration of ethanol in vodka was determined by back titration. A known amount of excess potassium chromate was added to the vodka sample to convert ethanol into acetic acid by oxidation. The amount of leftover chromate was determined by titration with iron (II) solution, prepared from dissolution of ferrous ammonium sulfate. Using the amount of chromate added to the vodka solution, the amount of chromate reacted was determined and used to find the amount of ethanol in the sample

Redox Titration Carmen Ontiveros* Arlette Renteria . CHEM 1A Lab, Department of Chemistry, California State University, Fresno, CA 93740 Carmenchick@mail.fresnostate.edu September 23, 2017 The purpose of this experiment was to determine how much KMnO4 was needed to titrate approximately 1 mL of an Unknow X101 concentrated solution of Oxalic Acid. A standardized KMnO4 solution was used on a known solution of Oxalic acid to help determine the unknown percent oxalic acid in unknown X101. The unknown

close to the actual value. The slight uncertainties gathered from tools and human errors would have definitely played a role in increasing the percent error. Further Investigation: There are other experiments that can be done to understand the titration of KHP. We can titrate larger amounts of KHP in water. The experiment would be undetermined of the different sized tums tablets. We would be able to evaluate the different concentration of CaCO3 is the same for any tum tablet regardless of size.

M1- Standard solution and titration In the experiment, Sodium Carbonate (Na2C03) was mixed with Hydrochloric acid (HCL) to make a standard solution. The concentration of the sodium carbonate was known and the volume of hydrochloric acid was known however, the concentration of hydrochloric acid was unknown which is why we did the experiment to fine the concentration of the acid. In this experiment, when adding the hydrochloric acid (2HCL) to the sodium carbonate (Na2CO3), we got sodium chloride (NaCl)

Abstract The purpose of this experiment was to utilize acid-base titration methods to standardize NaOH, and use the standardized NaOH to find the % KHP in an unknown mixture (unknown #46). The standardization was precise, with the average molarity being 0.0917±0.3662 moles and each trial varying by only 0.6621 %. The percent mass of KHP in the unknown sample was 55.75 % with a percent variation between trials of 0.6621 %, which differed by the actual amount by 0.7883%; showing the experiment was

is to determine an unknown concentration of acid (hydrochloric acid) with a standard solution of a base (sodium carbonate) using titration method. The hypothesis is; as we know the concentration of sodium carbonate (Na2CO3) we can obtain the concentration of hydrochloric acid using the titration of a standard solution. Theoretical Principles behind Titration: Titration is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown

Introduction: Titration is a technique used to find the concertation of an unknown acid, called the analyte, through the use of a base with a known concentration, called the titrant. In this experiment the analytes used were sulfuric and acetic acid and the titrant was sodium hydroxide. In order to find the concertation of these acids, the acid and base were mixed until they reached the equivalence point, or the point when the amount of titrant is equal to the amount of the analyte needed to fulfill

Mariam Sy May 8, 2014 Acid- Base Titration Lab Write-up Introduction: Titration is the process of adding measured volumes of a base or acid with a known concentration to an acid or base with an unknown concentration in order to determine the unknown concentration. Volume measurements play an important role in titration. It involves measuring the exact volume of a solution with a known concentration that will react with a measured volume of a solution that has an unknown concentration. The

1. Why are three replicate titrations done for each sample? The more times an experiment is done, the more reliable the answer becomes. Therefore, three replications are done in order to reduce the error. 2. What other household products could be analyzed by titrations (suggest three)? We could analyze other household products, for example, drain cleaner, milk of magnesium, and citrus fruits. 3. Why is it necessary to add an indicator? Describe how an indicator works. A chemical indicator