Purpose
Write the purpose for your part of today’s experiment. Remember to be specific to the experiments that you are responsible for.

The purpose of today's experiment was to identify unknown substance 4732 by performing a series of tests to find its qualities. The tests I was responsible for are the sulfate test, halide test, and acetate test.

Materials/Chemicals
List the materials and chemicals that you used for the experiment.

Graduated cylinder, pipette, distilled water, beakers, test tubes, test tube rack, unknown substance 4732, 1M HNO3, 0.1M AgNO3, NaCl, 3M HCl, 0.1M BaCl2, Na2SO4, H2SO4 , C ₂H ₅OH

Procedure
Write out the procedure you followed for just your experiments today. Remember to include exact volumes, masses, temperatures, times, etc that were used.

Halide test
1. add 2 mL of 1M HNO3 inside a test tube
2. add 2 mL of 0.1M AgNO3 inside a test tube
3. to test for a positive, add 1g of NaCl solution with water inside a test tube
4. combine 1 mL of 1M HNO3, 1 mL of 0.1M AgNO3, and 1 mL of NaCl solution inside a test tube. White precipitation forms.
5. to test for the unknown substance, combine 1 mL of 1M HNO3, 1 mL of 0.1M AgNO3, and 1 mL of unknown substance solution (solution is 15 mL distilled water and 1g of the substance). White precipitation does not form.
6. dump out all chemicals into a beaker containing waste and wash out all the test tubes, graduated cylinder, and pipettes.

Sulfate test
1. add 2 mL of 3M HCl inside a test tube
2. add 2 mL of 0.1M BaCl2 inside a test tube
3. to test for a positive, add 1g of Na2SO4 solution with distilled water inside a test tube.
4. combine 1 mL of 3M HCl, 1 mL of 0.1M BaCl2, and 1 mL of Na2SO4 solution inside a test tube. White precipitation forms.
5. to test for the unknown substance, combine 1 mL of 3M HCl, 1 mL of 0.1M BaCl2, and 1 mL of unknown substance solution (solution is 15 mL distilled water and 1g of the substance). White precipitation does not form.
6. dump out all chemicals into a beaker containing waste and wash out all the test tubes, graduated cylinder, and pipettes.

Acetate test
1. add 2 mL C2H5OH inside a test tube
2. add 1 g of C2H3NaO2 solution with distilled water inside a test tube
3. combine 1 mL C2H5OH and 1 mL of C2H3NaO2 solution inside a test tube and add 1 drop of H2SO4
4. combine 1 mL C2H5OH and 1 mL of unknown substance solution inside a test tube and add 1 drop of H2SO4
5. to test for a positive, heat up a beaker with water and place the test tube solution with C2H3NaO2 in the water. The solution will smell fruity when heated.
6. to test the unknown substance heat up a beaker with water and place the test tube solution with unknown substance in the water. The solution will smell fruity when heated.
7. dump out all chemicals into a beaker containing waste and wash out all the test tubes, graduated cylinder, and pipettes.





Data and Conclusions
Report all of the raw data and observations that were collected for your experiments, not the entire group. Any graphs or images collected should also be included.

Halide test
no precipitation was formed when testing the unknown substance, so no halide ions present

Sulfate test
no precipitation was formed when testing the unknown substance, so no sulfate ions present

Acetate test
the unknown substance had a fruity smell when tested, so acetate was present

Conclusions
Make a conclusion based on your results. Consider what your originally stated in your purpose and draw conclusions based on the data you collected. If you worked with another student you are free to share data but make sure the are referenced appropriately.



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