Stoichiometry Lab Report

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Calculations of a Chemical Reaction
Introduction:
Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction or forming a compound. In this lab, the point is to observe the reaction of calcium chloride and sodium carbonate, which will form insoluble calcium carbonate. In the chemical equation, sodium chloride is also a product. Sodium chloride is very soluble, since sodium and chlorine do not react, which also causes it to break apart. This leaves calcium carbonate as the only product that we can see and measure. Therefore, using the number of moles we have of each solution, the excess reactant can be determined, along with the theoretical amount of calcium carbonate that can be produced. Also, a part of this lab is to compare the theoretical amount to the actual amount of
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Wear eye goggles, to prevent spills and splashes going into your eyes, and tie up long hair.
2. Pour about 50mL of sodium carbonate solution into a 100mL graduated cylinder. Record the volume of sodium carbonate to the closest 0.5mL for your data.
3. Get a 250mL beaker, and add the sodium carbonate into it.
4. Pour about 30mL of calcium chloride solution into a 100mL graduated cylinder. Record the volume of calcium chloride to the closest 0.5mL for your data.
5. Carefully pour the calcium chloride into the 250mL beaker with the sodium carbonate already in it. Note down the reaction results.
6. Stir the solutions in the beaker for approximately one minute, then let the solid settle on a flat surface.
7. Use the centigram balance to find the mass of the filter paper while waiting for the solid to settle. Round the mass to the nearest 0.01g and record the mass.
8. Put the ring support on the ring stand, and set up the funnel. Carefully fold the filter paper into a cone, and put it into the funnel. Place a 250mL beaker under the funnel, to collect all the

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