|NAME: LORRAINE |LAB PARTNER: KAREN HO | |LAB EXPERIMENT: TESTING OSMOSIS WITH A POTATO |LAB DATE: NOV. 23rd / 2012 | |CLASS: Y-11-C |PERIOD:C |
The weight of the potato slices will increase, decrease, or remain the same?
There will be no net movement of water molecules into or out of the potato.
|Large potato | |Cutters (in the shape of a fish) | |3 small beakers or clear dishes | |3 glass covers | |Sucrose solution | |Salt | |Distilled water | |Paper towel |
1. Add 200ml of distilled water, 40ml sucrose solution and 5g salt into three beakers respectively. Record the solutions concentrations, volumes, and weights. ②Use a cutter to cut the potato to the similar size. Record the weight of pieces potato. ③Put the three potatoes slice into each beaker. Cover the beakers with glass covers and leave them for 48 hours. ④Carefully remove the potato slices from the distilled water solution & pat it dry on a paper towel. Weight the potato slices immediately. Record the final weight of the pieces. ⑤Clean up the equipment & area and return materials to their proper place. DATA AND/OR OBSERVATIONS
|Potato slices weight (Before)|Material | Distilled water |Potato slices...