Obtaining an empty and dry 50ml beaker its mass was

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Obtaining an empty and dry 50mL beaker its mass was taken and recorded. Once its empty mass was recorded the beaker was filled with 40mL of water from the 300mL gathered at the start and massed again. The new mass was recorded as well. The mass of the water was calculated by subtracting the weight of the beaker empty beaker from the weight of the beaker with water. Using the mass of the water and the volume of water from the 50mL beaker the density of the water was calculated. With the temperature of the water that was taken at the beginning the theoretical density of water at that temperature was found and then using the theoretical density and the experimental density the percent error of the beaker was found. Once the calculation were done the water in the 50mL beaker was replaced back into the 600mL beaker. After calculating the percent error part one of the experiment was redone two more times and using the three trials the average density and percent error were calculated. The above procedure was repeated with a 125mL Erlenmeyer flask using three trials.
Part two of the experiment began with obtaining a 50mL burette and setting it up with a ring stand and clamp. Once the Burette was set up an empty and dry 100mL beaker was gathered and massed and the mass recorded. The temperature of the water in the 600mL beaker was again taken and recorded. With the mass of the beaker and the temperature of the water recorded the burette had 100mL of water from the 600mL beaker carefully measured into the burette. The 100mL beaker was placed underneath the burette and the burettes contents were emptied into the beaker. Once all of the water had left the burette and filled the beaker the beaker was again massed and had its mass recorded. The mass of the water was calculated by subtracting the weight of the beaker empty beaker from the weight of the beaker with water. Using the mass of the water and the volume of water from the 50mL beaker the density of the water was calculated. With the temperature of the water that was taken at the beginning the theoretical density of water at that temperature was found and then using the theoretical density and the experimental density the percent error of the burette was found. Once the calculation were done the water in the 100mL beaker was replaced back into the 600mL beaker. After calculating the percent error part two of the experiment was redone two more times and using the three trials the average density and percent error were calculated. Part three of the experiment started with obtaining an empty and dry 10mL graduated cylinder and massing and recording its mass. Once the mass was recorded the temperature of the water in the 600mL beaker was taken and recorded. After the temperature was recorded 1ml of water was added to the graduated cylinder using a disposable plastic pipet and each drop from the pipet was counted. Once the graduated cylinder was filled with 1mL of water the graduated cylinder was massed again and the new mass was recorded. The mass of the water was calculated by subtracting the weight of the empty graduated cylinder from the weight of the graduated

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