Safety Glass is used in every experiment and was always handled carefully, especially when being heated. If a glass object was dropped, the teacher was immediately notified so that the proper cleanup procedure could be done. Hot plates and lamps get hot quickly, so when I was working with them I made sure I did not touch them. In many of the experiments possible eye and skin irritants such as ZnCl₂ as well as toxic materials like HCl are used. Materials such as these should be handled with gloves and kept away from the face.
Procedure
In experiment 2 aqueous ZnCl₂ as well as aqueous NaOH were added to a beaker in order to create Zn(OH)₂. This was observed and in order to show how it can be made quickly and was then put into the waste …show more content…
In order to see the correlation between wavelength and intensity the lights were hooked up to the computer ocean optics spectrophotometer. The emission tubes for visible light were turned on and then the blue fiber optic cable that is connected to the Red Tide UV-Vis spectrometer. The cable was moved around so that the intensity is at the highest spot possible. The graph was then recorded on the computer to show the what wavelengths have the most intensity for visible light. This was recorded in the same way for hydrogen light, helium light, and black/UV light. In the second part of the lab I made verdigris. CuSO₄*5H₂O, water, and a magnetic stir bar were placed inside a beaker and put on a hot plate. Once the CuSO₄*5H₂O has dissolved and the solution is still stirring, ammonia was added in droplets until the mixture became a deep blue color. Once this was stirred I filtered it until most of the liquid was gone. It was then mixed with water and stirred as sodium hydroxide was poured in and then filtered again. The solid was stirred in with ammonia which made it change to a blue green …show more content…
CuSO₄*5H₂O was put on a hot plate with a stir bar and water. I then prepared a mixture of Na₂CO₃ and water. This solution was added to the other mixture slowly while it was being stirred. When bubbling occurred, I stopped pouring the solution until it stopped. Once they were completely stirred together the mixture was put in an ice bath. The mixture was filtered and dried before being transferred to a vial. Some of the mixture was then added to tempera paint with water and mixed to form a light blue paint. The crystals from the last experiment were then crushed and added to another mix of paint and water to make a different light blue
Procedure
In experiment 2 aqueous ZnCl₂ as well as aqueous NaOH were added to a beaker in order to create Zn(OH)₂. This was observed and in order to show how it can be made quickly and was then put into the waste …show more content…
In order to see the correlation between wavelength and intensity the lights were hooked up to the computer ocean optics spectrophotometer. The emission tubes for visible light were turned on and then the blue fiber optic cable that is connected to the Red Tide UV-Vis spectrometer. The cable was moved around so that the intensity is at the highest spot possible. The graph was then recorded on the computer to show the what wavelengths have the most intensity for visible light. This was recorded in the same way for hydrogen light, helium light, and black/UV light. In the second part of the lab I made verdigris. CuSO₄*5H₂O, water, and a magnetic stir bar were placed inside a beaker and put on a hot plate. Once the CuSO₄*5H₂O has dissolved and the solution is still stirring, ammonia was added in droplets until the mixture became a deep blue color. Once this was stirred I filtered it until most of the liquid was gone. It was then mixed with water and stirred as sodium hydroxide was poured in and then filtered again. The solid was stirred in with ammonia which made it change to a blue green …show more content…
CuSO₄*5H₂O was put on a hot plate with a stir bar and water. I then prepared a mixture of Na₂CO₃ and water. This solution was added to the other mixture slowly while it was being stirred. When bubbling occurred, I stopped pouring the solution until it stopped. Once they were completely stirred together the mixture was put in an ice bath. The mixture was filtered and dried before being transferred to a vial. Some of the mixture was then added to tempera paint with water and mixed to form a light blue paint. The crystals from the last experiment were then crushed and added to another mix of paint and water to make a different light blue