Friday, December 11, 2009

Osmosis lab write-up.

Class, I'd like you to write up this osmosis lab.  Here's the data for 1st period
egg in water for 24 hours                   egg in syrup for 24 hours
61.94g to 69.04g                                60.13g to 56.51g
58.05g to 67.62g                                59.79g to 56.00g
58.30g to 75.52g  -eggshell broke      71.31g to 55.19g


7th period data

1.     Original mass: 74.63 grams
New mass: 85.07 grams
2.     Original mass: 69.34 grams
New mass: 78.38 grams
3.     Original mass (karo): 61.13 grams
New mass: 50.67 grams


8th period data

Corn Syrup
Before                After         
60.60g------------- 49.23g
63.8 g--------------56.8 g
70.21g--------------45.95g


Water
Before                After 
63.17g-------------69.59g
65.86g------------71.06g







Lab write up expectations:
Purpose
Brief procedure
egg data
explanations for changes in elodea (water plant), egg, and onion
Conclusion about osmosis

Have a nice weekend!  :-)

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