Difference between revisions of "Notebook"
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Example: To find the relationship of volume with different measuring techniques (beaker, graduated cylinder, transfer pipet) | Example: To find the relationship of volume with different measuring techniques (beaker, graduated cylinder, transfer pipet) | ||
| − | 3. Data/ Procedure. Set up | + | 3. Data/ Procedure. Set up 3 tables to help you find your information easier. |
Example: | Example: | ||
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| + | ==Procedure== | ||
| + | Data Collection (with lab partner) | ||
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| + | |||
| + | Obtain a 150 mL beaker from your glassware drawer and place it on an electronic “top-loading” balance. You will “tare” the balance, which means you will set the balance to read 0.00 g. Using a “squirt bottle” containing reverse osmosis (RO) water, fill the “tared” beaker up to the first volume mark (probably 20 mL). Be sure to account for the meniscus and be as accurate as possible. One partner will record the volume (ex. 20 mL) and the mass to 2 decimal places (ex. 19.60 note “0” IS a number) in their lab notebook data table. Repeat the mass measurement after adding additional liquid up to the next volume marked on the beaker. Stop data collection once you reach 100 mL. You should end up with at least 5 pairs of data points. | ||
| + | Return to your lab bench, discard the distilled water, and dry the beaker with a paper towel…consider saving and reusing the paper towel. At this time, transfer data into to all lab partner’s notebooks. | ||
| + | |||
| + | |||
| + | You will now repeat the measurement of a liquid two additional times with the following variations: | ||
| + | 1) Instead of using the marking on the beaker, you will add 20.00 ml of RO water to the beaker using a graduated cylinder obtained from your drawer. We suggest using a squirt bottle to fill the graduated cylinder 90% to the mark and then use a small beaker from your drawer with RO water and a transfer pipet (plastic dropper) to add the last few drops. Be sure to account for the meniscus and be as accurate as possible. This data collection will require an additional table in your lab notebook. | ||
| + | 2) Repeat the procedure that uses the graduated cylinder for an unknown liquid. Be sure to include the description (mainly ID# and color) of the unknown in your lab notebook. | ||
| + | Once you have collected all the 3 data sets and entered all data into your lab notebook, clean/rinse glassware with RO water. NOW, collect one more set of different “unknown” data from another lab group; enter data in your notebook making sure to include the full names of the other group members. | ||
Revision as of 20:28, 28 April 2016
Notebook Lab
Prepare your Notebook
1. Fill out Table of Contents. Name, date, title of lab, page
Example: Stu Dious, 8/26/16, Notebook Practice, Page #1
2. Put in purpose in your own words.
Example: To find the relationship of volume with different measuring techniques (beaker, graduated cylinder, transfer pipet)
3. Data/ Procedure. Set up 3 tables to help you find your information easier.
Example:
List them by the different measuring technique, such as Table 1: Beaker.
Procedure
Data Collection (with lab partner)
Obtain a 150 mL beaker from your glassware drawer and place it on an electronic “top-loading” balance. You will “tare” the balance, which means you will set the balance to read 0.00 g. Using a “squirt bottle” containing reverse osmosis (RO) water, fill the “tared” beaker up to the first volume mark (probably 20 mL). Be sure to account for the meniscus and be as accurate as possible. One partner will record the volume (ex. 20 mL) and the mass to 2 decimal places (ex. 19.60 note “0” IS a number) in their lab notebook data table. Repeat the mass measurement after adding additional liquid up to the next volume marked on the beaker. Stop data collection once you reach 100 mL. You should end up with at least 5 pairs of data points.
Return to your lab bench, discard the distilled water, and dry the beaker with a paper towel…consider saving and reusing the paper towel. At this time, transfer data into to all lab partner’s notebooks.
You will now repeat the measurement of a liquid two additional times with the following variations:
1) Instead of using the marking on the beaker, you will add 20.00 ml of RO water to the beaker using a graduated cylinder obtained from your drawer. We suggest using a squirt bottle to fill the graduated cylinder 90% to the mark and then use a small beaker from your drawer with RO water and a transfer pipet (plastic dropper) to add the last few drops. Be sure to account for the meniscus and be as accurate as possible. This data collection will require an additional table in your lab notebook.
2) Repeat the procedure that uses the graduated cylinder for an unknown liquid. Be sure to include the description (mainly ID# and color) of the unknown in your lab notebook.
Once you have collected all the 3 data sets and entered all data into your lab notebook, clean/rinse glassware with RO water. NOW, collect one more set of different “unknown” data from another lab group; enter data in your notebook making sure to include the full names of the other group members.