MagicBottle_LabReport

# Once it was known what change the sample underwent

This preview shows pages 1–2. Sign up to view the full content.

depended on how fast and vigorous the tube had been shaken or stirred. Once it was known what change the sample underwent, the students began to experiment how the sample reacted to different conditions. First a light bulb was connected to a plug and the sample was exposed to the light source. Having done so the sample turned from a blue color to more of a purple, violet. After the same sample that had been exposed to the light source was placed in a beaker filled with ice. While that sample rested in the ice bath, a beaker with water was heated to 40° C on the hot plate. A new vial was shaken until blue and then placed in the boiling water. After having collected the temperature and times at which rate the vial changed the group then went to discuss observations with another group. Among the groups data for different observations were exchanged. On the second half of the laboratory the students gather the two graduated cylinders and the small beaker and by placing on a scale recorded the mass respectively of each container. Having recorded the tare mass of each empty container 10 mL of water was transferred using the pipette into each of the three containers. Then the mass was again recorded this time with the liquid in each container. With the

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
tare mass and the gross mass having been found, the net mass was determined by subtracting the tare mass from the gross mass. The volume of water in each container was then recorded using the measurement on each container yielding the significant figures. Density was then calculated by dividing the mass by the volumes measured in each container. All calculations were recorded and significant figures were accounted
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern