Halide Ions Lab
Reactivity of Halide Ions
PURPOSE
The purpose of this experiment is to observe the reactions of halide ions with different reagents by mixing them together.
Materials
0.1 M AgNO3
0.1 M NaCl
0.1 M NaF
0.2 M KBr
0.2 M Na2S2O3
3% Starch Solution
4.0 M NH3 (aq)
5% NaClO (commercial bleach)
24 – well microplate thin – stemmed pipettes, 12
Safety
DATA
|PARTS |INITIAL MASS |FINAL MASS |CHANGE IN MASS |
| | | | |
|1 |119.9g |118.6g |1.4g |
| …show more content…
The system in part 1 was to “pour the vinegar into the beaker that contains the baking soda”. The system in part 2 was to pour the vinegar in the plastic zip lock bag that contains the baking soda and then lock up the bag. The difference between the two is that in part 1 the experiment is out in the open, while the experiment for part 2 is enclosed in the plastic bag.
4. How can this lab be used to prepare the Fun Science exhibits? Explain your proposal for packaging the contents, and write instructions for the participants who will visit the exhibit.
To prepare this lab for the Fun Science exhibits the two household substances must be in sealed containers, one container for baking soda with 4.0g, and one container for the vinegar with 100 mL. There would be two extra containers, one for the first experiment, and the second one would be the measuring container for the vin and a plastic zip lock bag for the second experiment. A single –pan balance would also be necessary to measure the mass. A data table with the labels already in the boxes would also be necessary. Also a weighing cup would be needed to measure the mass of the baking soda.
Instructions: Part 1 1.) Measure the mass of the container, then place 2.0g of baking soda in
PURPOSE
The purpose of this experiment is to observe the reactions of halide ions with different reagents by mixing them together.
Materials
0.1 M AgNO3
0.1 M NaCl
0.1 M NaF
0.2 M KBr
0.2 M Na2S2O3
3% Starch Solution
4.0 M NH3 (aq)
5% NaClO (commercial bleach)
24 – well microplate thin – stemmed pipettes, 12
Safety
DATA
|PARTS |INITIAL MASS |FINAL MASS |CHANGE IN MASS |
| | | | |
|1 |119.9g |118.6g |1.4g |
| …show more content…
The system in part 1 was to “pour the vinegar into the beaker that contains the baking soda”. The system in part 2 was to pour the vinegar in the plastic zip lock bag that contains the baking soda and then lock up the bag. The difference between the two is that in part 1 the experiment is out in the open, while the experiment for part 2 is enclosed in the plastic bag.
4. How can this lab be used to prepare the Fun Science exhibits? Explain your proposal for packaging the contents, and write instructions for the participants who will visit the exhibit.
To prepare this lab for the Fun Science exhibits the two household substances must be in sealed containers, one container for baking soda with 4.0g, and one container for the vinegar with 100 mL. There would be two extra containers, one for the first experiment, and the second one would be the measuring container for the vin and a plastic zip lock bag for the second experiment. A single –pan balance would also be necessary to measure the mass. A data table with the labels already in the boxes would also be necessary. Also a weighing cup would be needed to measure the mass of the baking soda.
Instructions: Part 1 1.) Measure the mass of the container, then place 2.0g of baking soda in