Molecular Mass of an Acid and the Analysis of Vinegar

Molecular Mass of an Acid and the Analysis of Vinegar -...

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Molecular Mass of an Acid and the Analysis of Vinegar Fatima Elzin SJU Chemistry 1111L 73139 October 28, 2009 Pedro Bastos, Anne Okafor
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Fatima Elzin Chemistry 1111L October 28, 2009 Dr. Pedro Bastos Molecular Mass of an Acid and the Analysis of Vinegar 1. Why are three replicate titrations done for each sample? In order to get a more accurate reading on the volume. 2. What other household products could be analyzed by titrations? Lemon Juice, fruit juice and ammonia 3. Why is it necessary to add an indicator? Describe how an indicator works. It is
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Unformatted text preview: necessary to add an indicator in order to observe the titration. When an acid is added to the solution with the indicator it turns pink. 4. What is weighing by difference, how was it used here? Weighing by difference is when you weigh the object holding the liquid and then weigh both the object and the liquid and subtract. It was used when trying to find the mass of vinegar....
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This note was uploaded on 04/24/2010 for the course CHE 1111L-0 taught by Professor Jain during the Spring '08 term at St. John's.

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Molecular Mass of an Acid and the Analysis of Vinegar -...

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