Editing Lab Directions - Using Water Displacement To Calculate Density
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Objective/purpose/hypothesis: To be able to calculate density of irregular shaped objects<br> <br> <u>Materials/equipment</u><br> 1) <nowiki>Cent-O-gram</nowiki> balance<br> 2) 25 mL graduated cylinder<br> 3) 10mL graduated cylinder<br> 4) "no hole" 00 rubber stopper<br> 5) Metal cylinder<br> <br> <u>Directions</u><br> 1. One partner gets the <nowiki>Cent-O-gram</nowiki> balance and "zero it out". Other partner gets all the other material from the lab and bring it to the lab station.<br> 2. Mass out the weight of both the rubber stopper and metal cylinder to the number of significant figures that the scale requires.<br> 3. Record masses in your data table.<br> 4. Using the DI water from the lab bench area, fill the 25mL graduated cylinder about 1/2 filled. <br> 5. Record volume (water for stopper) in your data table.<br> 6. Add the rubber stopped and record the new volume (as volume of water plus stopper). <br> 7. Record volume in your data table.<br> 8. Remove rubber stopper by pouring out water. Dry off stopper and put back where found it.<br> 9. Repeat Step 4 thru 7 for metal cylinder making sure that you indicate the initial volume of water is for the cylinder part of the experiment.<br> 10. Using the DI water from the lab bench area, fill the 10mL graduated cylinder about 1/2 filled.<br> 11. Add metal cylinder (making sure not lose any water) and record the new volume ( as volume of water from 10mL cylinder).<br> <br> <br>
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