Why did the precipitate line form closer to the origin of the HCI? The TA put th

Question

Why did the precipitate line form closer to the origin of the HCI? The TA put the HCI and the NH_4OH in the tube at nearly the same time. How and why would the results have been affected if they put the HCl in the tube and then forgot to add the NH_4OH until a half hour later? Why did you not do a Benedict's test on bag 1 (starch/glucose-don't overthink this!)? Why did you need to rinse the bags with water? What could happen if you did not? all questions answered correctly one question answered incorrectly two or more questions answered incorrectly assignment not turned in or information turned in as handwritten or emailed

Explanation / Answer

1) The precipitate line formed closer to the origin of HCl because of the weight of molecules. Ammonium hydroxide molecules are lighter when compared to the molecules of HCl. This caused them to diffuse quicker throughout the test tube.

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