CHEM117 Massachusetts Precipitation Reactions of Calcium Carbonate Essay

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Question Description

the precipitation reaction of calcium carbonate: understanding dilutions , stoichiometry, and limiting reagent

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Tutor Answer

jlco88
School: Purdue University

Here it is!. I did finish it. If you need aything else just let me know

1. Discuss to what extend the actual levels of precipitate matched your expectations

CaCl2

mmol
CaCO3
formed
0.2

mmol
excess
reagent left
0.4

CaCl2
CaCO3
CaCO3

0.4
0.6
0.6
0.6

0.1
0
0.2
0.4

Reaction

Limiting
reagent

Excess
reagent

Test tube 1

CaCO3

Test tube 2
Test tube 3
Test tube 4
Test tube 5

CaCO3
CaCl2
CaCl2

According to the theoretical calculated yield we should have observed a low quantity of
precipita...

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