Stoichiometry And Limiting Reagents Lab Report

In the Stoichiometry and Limiting Reagents Lab, a variety of both concepts, procedures, as well as materials. The compounds involved in this lab were two grams of CaCl₂, otherwise known as Calcium Chloride, and one gram of Na₂CO₃, or Sodium Carbonate. The point of this lab was to create a double replacement, which is where two compounds switch places in the chemical formula (for example, AX+BY=AY+BX) using aqueous (a solution containing water) solutions of sodium carbonate and calcium chloride as the reactant to find the excess and limiting reactants. A limiting reactant is the reactant in a chemical reaction that becomes the limit of the amount of product that can actually be formed. The reaction will cease when all of the limiting reactant

When the crystals in both beakers are dissolved completely, add the calcium chloride mixture into the sodium carbonate solution (it cannot be the other way around) and swirl the mixture for about 10-20 seconds. Taking a sheet of filter paper, you fold it in half, then in half again, and you should be left with two pockets. Select any pocket and push the rest of the folds to one side (so that one side should have one fold of paper and the opposite side should have three folds, like the picture below shares)and then place it inside the funnel, which should be resting in the hoop of the ring stand and iron ring. Do not forget to place a beaker or cup underneath the funnel to catch the dripping water as well. Also, if the filter paper refuses to stay still inside the funnel, you can add a small squirt of distilled water which will help seal the paper and keep it down. Carefully pour the solution of calcium chloride and sodium carbonate into the funnel and into the filter paper. Then, add another 3-5 mL of distilled water to the same beaker that previously held the calcium chloride and sodium carbonate mixture. Give it a good swirl and pour the water into the funnel and repeat this step one to two more times to ensure that all of the contents of the beaker have been transferred into the funnel and filter paper. Let it dry overnight, which guarantee all the water has run through and the solution has completely dried through. On the