Zinc And Hydrochloric Acid Reaction Lab Report
comparative Essay
577 words
1. The goal of number Lab #1 was to observe how different amounts of Zinc (Zn) will react with 15 mL of Hydrochloric Acid Solution (6 M HCl). 15 mL of 6 M HCl solution (21.5° C) was poured inside the Erlenmeyer flask. Weight of the container with this solution was 103 g. The flask was closed with a stopper (cork?) and the total weight increased to 103.161 g. 0.25 g of Zinc was added to the solution. The maximum temperature was observed at 26.5° C with the final weight of the container at 103.411 g. The same steps were repeated while adding 25 g of Zink to the solution and resulted in explosion while performed in a closed flask. Meanwhile, when the flask was not closed, 25 g of Zinc caused the solution to reach the temperature of 100°C and produce gas while reducing total mass of the container to 94.93 g. 2. …show more content…
Temperature of the HCl in the flask was 21.5° C (same as the room temperature.) 3. Adding 25 g of Zink to HCl in a closed flask resulted in explosion. 4. Adding 25 g of Zink to HCl in an open flask did not cause an explosion. The maximum temperature of the reaction reached 100°C. Total weight of the container decreased from 103 g to 94.93 g. 5. Vial number 2 did not change colors. 6. Vial number 1 turned yellow, which is a sign of bacterial growth. 7. In vial number 1, the bacterial growth was observed because the vial was crushed, which allowed the indicator to react with the solution. Vial number 2 was not crushed, which did not allow the indicator to function properly and show any bacterial activity. 8. Experiment I: Get to know the Lab Erlenmeyer flask (150 mL) weight (88.00 g) Thermometer Scale (Digital Balance) Stopper
In this essay, the author
- Explains that lab #1 was to observe how different amounts of zinc (zn) will react with 15 ml of hydrochloric acid solution.
- Explains that the temperature of the hcl in the flask was 21.5° c (same as the room temperature).
- Compares the bacterial growth observed in the vial number 1 and vial number 2 because the vial was crushed, which allowed the indicator to react with the solution.
- Explains that lab #1 was to observe how different amounts of zinc (zn) will react with 15 ml of hydrochloric acid solution.
- Explains that the temperature of the hcl in the flask was 21.5° c (same as the room temperature).
- Compares the bacterial growth observed in the vial number 1 and vial number 2 because the vial was crushed, which allowed the indicator to react with the solution.
- Describes how the 25 g zn erlenmeyer flask was placed on a workbench and 15 ml of 6 m hcl was poured into it.
- Explains that the experiment was repeated with 25 g of zn and resulted in explosion. the temperature maximum was observed at 100 degrees celsius.
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