When it comes to dealing with analytical chemistry, the main focus is the composition and structure of matter, and the processes utilized to do so (Analytical Chemistry, n.d.). A lot of the times in chemistry people want to explore a compound, analyzing it to see what components are used to create that said compound and there are many different methods that can be used to help isolate those different components. The purpose of this lab is to utilize gravimetrical analysis to isolate and determine the percent composition of chloride present in an unknown compound.
Gravimetrical analysis utilizes precipitation that results in the isolation of specific substance based on the reaction that is used. Once the substance has precipitated it is able to be washed and weighed, which in turn reveals the composition of the original compound in terms of how much of that specific substance was present in the original compound (Gravimetric Analysis, n.d.). A precipitate forms what two salts that are soluble together to form one or more insoluble products, which is the precipitate (Definition of Precipitate, n.d.). An example of a precipitate is silver chloride; it is created when a sufficient amount of …show more content…
All in all, the hypothesis was not fully supported by the results because all though it did find a percent composition of chlorine in an unknown substance, when compared to the actual amount that was present there was greater than 5% error, which was 8.4%. This means that there had to be some type of error that added additional weight to the final precipitate; such as impurities present in the product, improper weighing of the unknown or product, or misuse or malfunction of equipment. Overall the experiment accomplished what it was set out to do, the percent error was just a little greater than
Gravimetrical analysis utilizes precipitation that results in the isolation of specific substance based on the reaction that is used. Once the substance has precipitated it is able to be washed and weighed, which in turn reveals the composition of the original compound in terms of how much of that specific substance was present in the original compound (Gravimetric Analysis, n.d.). A precipitate forms what two salts that are soluble together to form one or more insoluble products, which is the precipitate (Definition of Precipitate, n.d.). An example of a precipitate is silver chloride; it is created when a sufficient amount of …show more content…
All in all, the hypothesis was not fully supported by the results because all though it did find a percent composition of chlorine in an unknown substance, when compared to the actual amount that was present there was greater than 5% error, which was 8.4%. This means that there had to be some type of error that added additional weight to the final precipitate; such as impurities present in the product, improper weighing of the unknown or product, or misuse or malfunction of equipment. Overall the experiment accomplished what it was set out to do, the percent error was just a little greater than