Naked Egg Lab Report

900 Words2 Pages

INTRODUCTION
The purpose of this experiment is to show the effect of different concentration of solutions and the amount of osmotic activity between the solutions and three 3 naked eggs. A naked egg has a selectively permeable membrane. Osmosis is the crossing of solvent molecules from a region of higher concentration to a region of lower concentration through a selectively permeable membrane. In other words, a selectively permeable membrane means the control of substances or molecules passing in and out of the membrane by the cell membrane. A difference in solute concentration through a cell membrane will allow water flow by osmosis into the area with higher concentration of trapped molecules or substances. Concentrations with greater non permeable solute particles like protein in a solution, the …show more content…

The osmotic pressure of a hypotonic solution is lower than body fluids or other solutions; it swells by gaining water through osmosis. In hypertonic solutions, the osmotic pressure is higher than body fluids or other solutions; it loses water through osmosis and shrinks.
HYPOTHESIS
My hypothesis or guess is that the eggs will swell or increase in weight by showing that osmosis will occur by the different concentration of the solution so that a balance or osmotic equilibrium is reached.
MATERIALS USED
3 naked eggs
3 glass jars with lids
White vinegar
Karo (Corn syrup)
Water
Lemon juice
A ruler for measurement
A tiny rope/string
A flat plate to place the eggs on
A spoon to scoop the eggs from the jars
A camera to take pictures
A pen and a paper to note/record measurements of eggs

METHOD
Day 1 – Dissolving the shells of the eggs to make them naked
Carefully put the eggs one after the other in the three empty glass jars
Pour the white vinegar into the jars containing the eggs enough to cover the eggs
Cover the glass jars with the lids and place the jars in the fridge for 36 – 48hrs

DAY 2 – Jars in eggs still in the

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