Unformatted text preview: determined that the only way to measure the amount of precipitate in the reaction was to get rid of the H 2 O through evaporation by boiling a small amount of the mixture; therefore, leaving only the NaCl. Measurements may not be exact because of variables such as: precipitate being sucked through the filter paper, or not being able to retrieve all of the precipitate from a test tube. Our error in the reaction of Al(OH) 3 was the amount of time we had left because we only had time for one attempt at separating the precipitate. If more time was allotted, we could have used multiple methods for each reaction and compare the results of each to present a more accurate amount. However, our restriction of lab time hindered us from such a detailed experiment....
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- Fall '06