Na2CO3(aq) + CaCl2⋅2H2O → CaCO3(s) + 2NaCl(aq) + 2H2O(aq) Na2CO3(aq) + CaCl2⋅2H2O → CaCO3(s) + 2NaCl(aq) + 2H2O(aq)
Note: Be careful not to overfill the funnel. It may be necessary to gently swirl the funnel to keep the precipitate from clogging the paper, but be careful not to touch the filter paper so that it does not tear.
Note: Lift the funnel periodically during this time to facilitate the water draining into the beaker. Again, do not touch the filter paper so that it does not tear.
Note: Ensure the filter paper is placed in a location that does not have flowing air, such as a fan or air vent.
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