Limiting Reagent Lab Report

Introduction: The objective of the experiment is to determine the limiting reagent in a chemical reaction. The principles of stoichiometry and limiting reagents will be used to predict the amount of product formed. The amount of product formed and the change in the color of the solution upon mixing of two reactants are being used to predict the limiting reagent and calculate the theoretical yield in grams. My hypothesis was that with the reaction of the zinc with the copper sulfate solution that it would dissolve the zinc to determine the limiting reagent. Some of the terminology that was used during this lab is limiting reagent, theoretical yield, experimental yield, and excess reagent. A limiting reagent is a chemical reaction that limits the amount of product that can be formed. The reaction stops when the entire limiting reagent is consumed (reacted). It is the reactant which is present in the smaller mole ratio than required by a balanced chemical equation. Theoretical yield is amount of the product in grams formed from the limiting reagent in a reaction. Excess reagent is reactants that are not use up when the reaction is finished. Experimental yield is reactants that are not use up when the reaction is finished. Materials & Methods/Safety:

Second step, I recorded the number of moles of copper sulfate on the attached data sheet. Third, I collect the two different zinc samples a metal sheet and metal powder from the instructor and record the weights on the data sheet. Fourth step, I added the provided samples of zinc into the CuSO4 solutions in the beaker and stir the mixture with a stir bar on a magnetic stirrer and stirred it for 2-5 minutes. Fifth step, I observed the color change in the reaction vessel and record