Llmiting Reactant Date ab Sec. Name A. Precipitation of CaC,OH,O from the Salt M

Question

Llmiting Reactant Date ab Sec. Name A. Precipitation of CaC,OH,O from the Salt Mixture Desk No. Unknown number)M_E4 00 Trial I Trial 2 1. Mass of beaker (g) 2. Mass of beaker and salt mixture (g) 3. Mass of salt mixture (g) 4. Mass of filter paper (g) 5. Mass of filter paper and Cac,orH2(g) 6. Mass of air-dried CaC,OH,O (g) 242 623 %- uo or 7. Mass of oven-dried CaC,0, (8) B. Determination of Limiting Reactant 1. Limiting reactant in salt mixture (write complete formula) 2. Excess reactant in salt mixture (write complete formula) Data Analysis 1. Moles of CaC,0/H,0 (or CaC,0) precipitated (mo) 0OOSII no-. 2. Moles of limiting reactant in salt mixture (mol) formula of limiting hydrate formula of limiting hydrate formula of excess hydrate 3. Mass of limiting reactant in salt mixture (g) 005 4. Mass of excess reactant in salt mixture (g) o izo0s 5. Percent limiting reactant in salt mixture (%) formula of limiting hydrateCal04 4 formula of limiting hydrate C4404 . 420 12-6011 6. Percent excess reactant in salt mixture (%) formula of excess hydrate 7. Mass of excess reactant that reacted (g) formula of excess reactant 8. Mass of excess reactant, unreacted (g) Show calculations for Trial 1 on the next page. Experiment 4

Explanation / Answer

3. Mass of salt mixture = 73.623 - 71.242 = 2.381 g

I think all your other calculations are correct.

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