Essay On Titration

Introduction A great portion of analytical chemistry is dealing with a compound or substance and examining its composition and structure (Analytical Chemistry, n.d.). Often times, when dealing with chemistry people have a compound that is made up of several different components and only want to know about one specific component present. There is an abundant of different methods that can be utilized to isolate specific components. The purpose of this lab is to utilize one of those methods, titration, and determine how much carbonate is present soda ash, sodium carbonate. A titration utilizes a titrant, which is a solution that has a known concentration, which is added to another solution drop wise that has an unknown composition (Titration, 2016). There are several different types of titrations, for the purpose of this lab the specific one being used is referred to as an acid-base neutralization. When present in

Next a burette and burette stand was obtained and the burette was cleaned with 5 mL of deionized water, followed by 5mL of hydrochloric acid. Then three different sample of approximately 0.2 of soda ash was measured out and placed in a flask. Next the one trial of soda ash was dissolved in 25 mL of water and 3 drops of phenolphthalein. The solution was then titrated until the color changed from pink to clear. Once the solution was clear 3 drops of bromocresol green was added and the sample was titrated until the solution turned light green. The sample was then boiled for 5 minutes or until the solution turned blue and then it was placed on an ice bath until room temperature was met. Once room temperature was met the solution was then titrated again until the solution tuned green. Finally the calculations were conducted (Lab 4: Volumetric Determination of Impure Sodium Carbonate (Na2CO3),