Essay Database

Purpose The purpose of the experiment is to determine the percent yield of the precipitate; by performing double displacement reaction between solutions of two different compounds. Introduction First of all when making a solution of two different compounds; there will many variables that can be considered during the experiment. However, the variables are controlled variables. Controlled Variables ∙amount of water that will be dissolved with the compound (amount of water until the compound is dissolved) ∙…

…carefully during the experiment. So there was only the precipitate that was on the filter paper. We will need more time to actually be sure that the reaction is finished. Always add the excess water during the dissolving process and the stirring process; because, we donot know how much water is necessary to dissolve the compound. Shorten the time of exposing the ionic compounds; to avoid from the compounds reacting with water to form hydrate.