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UCLA CHEM 14BL - Guidelines

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The post-lab report for the Volumetric Pipet Calibration will include:Chem 14BL Winter 2003 Report Guidelines for Experiment #1 (Pipet Calibration) General Comments: Prelab Assignment Questions: The prelab assignment questions are to be written in your lab notebook. They are due at the beginning of your lab section. Every student is required to submit all prelab assignments. Lab Reports: Reports are written at three stages of the experiment. The introductory material, which constitutes preparation for lab, is completed before the lab starts. It is turned in at the start of your lab period. Data and observations are completed during the lab section and turned in at the end of each lab period. The final sections (data analysis, error analysis and conclusion, applications, etc.s) are completed after the lab period and are generally due one week after the experiment is complete. All work is to be written in your lab notebook. Every page must include the experiment title, the date, and your name (and partners, if appropriate.). Unless otherwise noted, individual reports are required for an experiment. If a group report is allowed, the report must include the names of the participants and the contribution that each person makes to the lab work and to the written report. (I) Pre-lab Work Prelab Assignment questions (Refer to your lab manual page.36): Read page 18-21 of the lab manual BEFORE you start working on these questions. Compete the following questions ONLY: (You must show all work for FULL credit) 2b, 2d, 2f, 3, 4b, 4d, 5 (only for the assigned ones in question 4), 6c The Introductory Report material will include • The title of the experiment • A reference (i.e. complete reference of the experiment including title of the lab manual, author, edition and page number of the experiment in the manual etc.) Include any changes to the procedure that you know you will make. Note: This quarter you will not calibrate the displacement pipet. • A short introduction (Summarize in a two or three sentences the goals of the experiment. Outline the kinds of techniques that you will use in the experiment) • A brief flow chart summary of the key procedures of the experiment • A data table to record the weights of the bottles before and after the water is transferred to them. • Note: Start a NEW page in your notebook for this section. The previous material will be turned in at the beginning of the period; this page will be turned in at the end of the lab period. Note: MSDS information is NOT required for this experiment. (II) Post-lab Work The post-lab report for the Volumetric Pipet Calibration will include: Calculations: • Calculate the true weights delivered for the 10-mL pipet (follow the example on page 35) • Calculate of the volume delivered (follow example on page 35) Error Analysis • Calculate of the relative average deviation (RAD) for the volume delivered by the pipet (see example on page 20 - 21)Conclusions: • Summarize results and comments on RAD of the pipet volumes. Practical Consideration: • Identify three actions that you can take to reduce your risk of a harmful accident in the chemistry


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UCLA CHEM 14BL - Guidelines

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