Respuesta :
Answer:
1. The liquids that will cause the largest decrease in mass is the concentrated sodium chloride solution
2. The reason why the potato stick with the lowest mass was flaccid or soft and floppy because the cytoplasm of the cells has lost considerable amount of water to the concentrated solution of sodium chloride such that the once filled cell are now partially evacuated and having less turgor pressure
3. With the boiled potato sticks, the cells are dead and the (semi-permeable) membranes selectivity is no longer active, as such there is no preferential movement of water molecules between the salt solution and the boiled potatoes and no overall change is mass as the potatoes have become less responsive to changes in the surrounding solution.
Explanation:
Osmosis is the region why they lose their water in the concentrated solution.
1. The largest decrease in mass will be caused by the concentrated NaCl solution.
2. Potato stick with the lowest mass was soft and floppy because of low turgur pressure.
3. The cells of boiled potato sticks lost their cell membrane, hence there is no change in mass.
Osmosis:
It is a process by which the solvent molecules move from its higher to its lower concentration through a semipermeable membrane.
Potato sticks are made up of cells. Cells contains cell membrane which act as a semipermeable membrane.
- Since the the concentration of cell is lesser than concentrated NaCl solution thus water from cell will move towards the solution.
- The potato cells lose most of its water hence become soft and floppy.
- On boiling, the cell membrane of potato cells degrades hence, there is no osmosis.
Therefore, osmosis is the region why they lose their water in the concentrated solution.
To know more about osmosis,
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