Stoichiometric relationship between the quantities of substances in a chemical reaction.

... Eirik Hjertenæs Experiment 7 Stoichiometric relationship between the quantities of substances in a chemical reaction Introduction: Stoichiometry is concerned with the quantitative relationship between the amounts of substances involved in chemical reactions. In this experiment we were to collect quantitative data in the reaction between Potassium iodide and Lead (II) nitrate. This reaction produces a bright yellow precipitate of lead (II) iodide, PbI2. This experiment was originally designed to be preformed with sodium iodide instead of potassium iodide. The experiment was meant to be a class activity and the class was divided into groups which were to do the reaction with the same amount of Pb(NO3)2 but different amounts of NaI. The amount of NaI for each group was given in the description but since we used KI instead we had to calculate new masses so that the amount of iodide would be the same. By measuring the weight of the reagents and the yield we

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