Lab 5 questions

Lab 5 questions - Graham Barnett 3/29/06 Section 2 1) The...

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Graham Barnett 3/29/06 Section 2 1) The premixed effervescence powder had a more intense initial reaction than the powders that were stored in separate powder papers. This initial reaction was due to the dry air, as the premixed powder should have had a weaker reaction. The premixed would normally adsorb moisture from the air and because both the acid and the base were already mixed they would react to any water that adsorbed onto them, thus making them already used and the contents of the premixed less effective and less stable. The greater intensity could have been because of the more evenly distribution of acid to base when they were poured into the water. The premixed had a much weaker smell to it in comparison to the separately mixed powders. Therefore, the separately mixed powders had a greater flavor to them. Both solutions were clear in color. The reaction for the separately mixed powders lasted longer overall, most likely due to the greater stability since the acid and base powders had been separated.
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Lab 5 questions - Graham Barnett 3/29/06 Section 2 1) The...

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