Laboratory Report Each student in the group is responsible for writing an indivi
ID: 715292 • Letter: L
Question
Laboratory Report Each student in the group is responsible for writing an individual lab report. You may have worked with classmates to collect and discuss data during lab, but your analysis and presentation of findings in the report must be your own work. The front matter of your lab manual includes a guide on writing a lab report, but each experiment's requirements are clearly outlined in the Carmen rubric for the assignment ls Points to Consider Do the experimental results indicate the presence of random errors? Of systematic er- rors? Comment on any human mistakes that may have occurred. . Take a look at your buret data. Discuss your accuracy and precision using just your information. Identify sources of error that could have affected your accuracy and precision. .Take a look at your group's average percent errors for the pipet. Discuss the group's accuracy and precision as a whole. Reflect on how the equipment you used in lab affected the significant figures of your final calculations. Our pipets are volumetric, meaning they are designed to deliver precisely one cali- brated volume. Therefore, they have only a single calibration line. What type of error is introduced if a chemist consistently overfills a 5-mL pipet and the meniscus is above the calibration line each time? Could the chemist compensate for this by recording a value of 5.05 mL? Why or why not? Use these Points to Consider to shape the Discussion section of your report. For full credit, address each point thoroughly and support your conclusions with data. The Discussion section should be presented as a few cohesive paragraphs. No subheadings are necessary and should not be included. 19Explanation / Answer
1. To transfer a volume of 10 ml its better to use an graduated 10 ml pipette. Because graduated 10 ml pipette gives an accuracy of upto+/- 0.01 ml. . and 2 decimal places can be rounded off .
2.To measure an volume of 10.5 ml liquid, 25ml graduated glass cylinder can be used which has an accuracy value of +/- 0.01ml. and the values can be rounded off to 1 decimal.
3. Temperature and density are intensive properties, they are bulk properties which doesnt depend on the quantity of the sample present. Mass and volume are extensive properties , whose properties depend on quantity of the sample present,
4. significant figures are the number of digits that contribute to the meaningful result to an experiment. all non zero digits are significant, and the zero between significant figures are significant.e.g10020- it has 5 significant figures.
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