A Precipitation Of Cac O H O From Salt Mixture Unknown Number 1 Reactant Masses G Cacl 2h 0 1 2009 2 Mass Of Filt 1 (30.09 KiB) Viewed 63 times
A Precipitation Of Cac O H O From Salt Mixture Unknown Number 1 Reactant Masses G Cacl 2h 0 1 2009 2 Mass Of Filt 2 (29.81 KiB) Viewed 63 times
A. Precipitation of CaC₂O, H₂O from Salt Mixture Unknown number 1. Reactant masses (g) CaCl, 2H₂0 1.2009 2. Mass of filter paper (g) 3. Mass of filter paper and CaC,O, H₂O(g) 4. Mass of CaCO, H₂O K₂C₂O, H₂O 1.8479 2.672g 1.4729 B. Determination of Limiting Reactant Based on Chemical Tests Record your observations from testing the supernatant. Results of adding: CaCl₂ 2H₂O K₂CO, H₂O 6.9399 When added, nothing happened 1. Limiting reactant (write complete formula) 2. Excess reactant (write complete formula) when added, there was precipitate that immediate formed; it also got cloody when added. Кабаон
Data Analysis Clearly show any necessary calculations and explanations for the following data analysis on another sheet of paper. 1. Based on the reactant masses used in your experiment, determine the limiting reactant. Compare the result obtained with the result using chemical tests in part B. Note that there are several methods possible for determining limiting reactants. Use whichever procedure you are most comfortable with, but be sure to show your work. 2. Based on the reactant masses used in your experiment, determine the theoretical yield (in grams) of CaC-O, H₂O. 3. Calculate the mass (in grams) of excess reactant that was not consumed in the reaction. 4. a. Calculate the percent yield of CaC₂0, H₂O using your actual yield from part A and the theoretical yield calculated above. b. Comment on your percent yield. Include possible explanations for results less than or greater than 100%.
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