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Lecture

CHM110H5 Lecture Notes - Barium, Silver Chloride, 2011 Nfl Season


Department
Chemistry
Course Code
CHM110H5
Professor
Judith C Poe

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EXPERIMENT 1
THE PROBLEM OF 9 UNKNOWN
SOLUTIONS
NAME:
STUDENT #:
LAB SESSION: PRA0117
DATE OF EXPERIMENT: 19 September, 2012
DATE OF SUBMISSION: 19 September, 2012
TEACHER ASSISTANT:_______________________
PARTNER’S NAME:_________________________
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Purpose:
The underlying purpose of the experiment is to identify the identity of given unknown solutions by using
only the other solutions as reagents.
Experiment Method:
1. Take 10 drops of each solution in a test tube and prepare binary combinations.
2. Once the identity of one or few of the solutions becomes apparent, use that as the main reagent
while reacting with the other unknown solutions.
3. Make note of the solution labels and carefully make observations and record them on the data
sheet.
4. Compare the data sheet with the pre-lab questions table and find the identity of the unknown
solutions based on the color of precipitate, formation of gases, salts from neutralization
reactions etc.
5. Record the identity of the given unknown solutions on the data sheet.
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