Lab 6D:
Determing the Limiting Reactant and Percent Yield in a Precipitation Reaction
The EQUIPMENT we used:
Centigram balance
2 graduated cylinders (25mL)
2 beaker (250mL)
1 Wash bottle
1 filtering apparatus (ring with stand, Erlenmeyer flask (250mL) +funnel)
1 Filter paper
lab apron
safety goggles
Things we need to KNOW before the experiment:
Na2CO3 (aq)+ CaCl2 (aq) → 2NaCl (aq) + CaCO3 (s)
0.70M sodium carbonate solution
0.50M calcium chloride solution
Objective:
To observe the reaction between solutions of sodium carbonate and calcium chloride
To determine which of the reactants is the limiting reactant and which is the excess reactant
To determine the theoretical mass of precipitate that should form
To compare the actual mass with the theoretical mass of precipitate and calculate the percent yield
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