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The effects of concentration on osmosis
Osmosis and diffusion quiz
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How an egg reacts during osmosis and diffusion By : Adrianna Simovski When the egg is placed in vinegar, it will be hypotonic. When it's placed in water, it will become hypertonic. When placed in syrup, it will become hypotonic and shrink. In this experiment, we used an egg to see what happens to it during osmosis and diffusion across membranes. Throughout this week, we collected data on what happened to the egg and the mass of the egg. During the first day, we weighted the egg and put the vinegar in the cup. Then, we let the vinegar sit on the egg for 24 hours. The next day ,day 2, we spilt out the vinegar ,and added distilled water. We also weighted the mass of the egg ,and described the appearance of the egg on the data chart. …show more content…
Question 1 is, Vinegar is made of acetic acid and water. Explain how it was able to remove the calcium shell. My answer was, the acetic acid broke down the shell. Question 2 is, What happened to the size of the egg after remaining in vinegar? My answer was, After remaining in vinegar the egg got bigger. Question 3 is, Was there more or less liquid in the jar? My answer was, There was less liquid in the jar. Question 4 is, Did the water move into or out of the egg? Why? My answer was, water moved into the egg because of osmosis. Question 5 is, What happened to the egg after remaining in distilled water? My answer was, After remaining in distilled water the egg got bigger. Question 6 is, was there more or less liquid left in the jar? My answer was, there was less liquid in the jar. Question 7 is, did water move into or out of the egg? Why? My answer was, water moved into the egg because of osmosis. Question 8 is, what happened to the size of the egg after remaining in syrup? My answer was, After remaining in syrup the egg shrunk. Question 9 is, Was there more or less liquid left in the jar? My answer was, there was more liquid in the jar. Question 10 is, Did water move into or out of the egg? Why? My answer was, Water moved out of the egg because of osmosis. Question 11 is, Was the egg larger after remaining in water or vinegar? Why? My answer was, the egg was larger after vinegar because of osmosis. Question 12 is, Why are fresh vegetables sprinkled with water at markets? My answer was, so the vegetables don’t shrink down. On day 2, the eggs mass became hypertonic from the vinegar. On day 3, the eggs mass became hypertonic from the distilled water. On day 4, the eggs mass became hypotonic from the syrup. The claim that you read in the beginning of this report is false. The correct claim should look something like this: When the egg is placed in vinegar, it will be hypertonic. When it's placed in water, it will become hypertonic. When
2. A test tube was then filled with 35ml of yeast and placed in the
The purpose of this project was to understand the forces, momentum, and energy a contraption would experience during an impact from a pendulum at 5, 10, 15, 20, and 25mph. The project was required to hold and protect 2 raw large Grade A eggs from each pendulum impact respectively.
To start the lab, we got an egg and placed it in different substances to see how the egg would react to the substances. The first day we weighed the egg before putting it in a cup of vinegar, the egg weighed 55.47 grams, we left the egg here for approximately forty-eight hours. The second day, the egg was still in the vinegar. The third day we moved it into the corn syrup where it stayed until the next morning, the egg weighed 76.66 grams.
When the eggs are dropped into the water, the eggs will stay whole. If we were dropping from a higher distance they would break.
I added ½ tablespoon of baking soda to 4 cups of water. I added a small drop of liquid soap to the water and stirred to mix. I used the end of a straw and cut out 20 circles of spinach leaves. I pulled the plunger completely out of the syringe and put the leaf circles into the syringe. Next I pushed the plunger back in. I used the syringe to suck up the baking soda water until the syringe was about ¼ full of liquid. I placed my finger over the end of the syringe and pulled back on the plunger as far as I could without pulling the plunger out. I repeated this step three times. All the leaf circles sunk to the bottom of the liquid. I placed the spinach into a clear glass with about 2 inches of baking soda solution. I blocked out all light. I set the lamp with a compact florescent light bulb. I placed the glass in front of the lamp. I counted the number of circles that floated after each minute for 20 minutes (positive control). I created a negative control by not placing compact florescent light bulb and not placing the glass in front of the lamp. I counted the number of circles that are floating. I repeated the experiment with fresh circles and used regular water plus soap for all steps instead of baking soda and soa...
Background info: hypertonic solution was used in the lab, hypertonic is the liquid substance that is going out of the egg. When a red blood cell has more water than what's outside then the water will come out and will become smaller. Hypotonic is when the water on the outside of the cell has more water than the inside, the water will go in the inside to make it run smoothly. Isotonic is when the inside and outside of the cell is each, they will stay the same.
My hypotheses stated that when an egg is placed in corn syrup or distilled water, osmosis will occur. They also said that when an egg is placed in corn syrup, the osmosis will occur from the water in the egg to the corn syrup while when the egg is placed in water, the osmosis will occur from water outside of the egg into the egg itself. The final part of my hypotheses states that the egg’s mass will decrease when it is placed in corn syrup, but when an egg is placed in water, its mass will increase. My reasoning when constructing my first hypothesis was that the structure of the corn syrup is too thick to travel through the cell membranes of the egg, but the water in the egg will be able to travel through the egg’s membranes and into the corn
Going into the egg drop project our group felt confident due to an abundance amount of research each one of us had done. Our cradle consisted of an inner tetrahedron base, using clear straws that were taped together holding the egg inside within the zip lock bag. The outer part of our cradle was formed by a full straw being cut in half then taped side-by-side, increasing the strength of the straws, then tapped at the vertices of our tetrahedron; facing the opposite direction of the egg. Rubber bands were then wrapped around the center of the entire model, further holding the straws in place.
* We would have to leave one end open to fill it up with the different
The purpose of this experiment is to investigate the effect of changing the concentration of sodium chloride solution on the rate of osmosis in tubes of potatoes. This was maintained using equal measurements of the potato tubes and applying them into the different concentrations of sodium chloride, 0%, 2%, 5%, 10%, 20% and 26%, in beakers then measuring the change in mass of the potato tubes afterwards. The time taken for all potato tubes to be placed in solution was 15 minutes. Can the concentration gradient of the sodium chloride solution influence on the rate of osmotic diffusion undergone by the potato tubes?
The egg appeared shriveled after removing it from the sucrose because of the movement of water out of the egg. The sucrose solution was hypertonic so water moved out of the egg from an area where water was more concentrated to the outside of the egg where water was less concentrated due to the high amount of sugar or solute. The acetic acid in vinegar did remove the shell from the egg, because the egg required two days to completely remove the shell, some water did move into the egg causing its initial mass without the shell to be higher than the egg's mass with its shell. Whenever the egg was transferred from the sucrose to the distilled water, the concentration of water outside the shriveled egg was greater than the water concentration inside the egg; therefore, water moved into the egg until equilibrium was reached. At that point, movement into and out of the egg continued with no net movement of water
Osmosis Introduction Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration. The aim of the investigation is to find the variables that affect the rate of osmosis and how they affect the rate of reaction. The variables that affect the rate of reaction of osmosis are, · The surface area of the object, · The concentration of the solution, · Temperature of the experiment Surface area If the surface area of the object is larger then more molecules can pass through the semi-permeable membrane. This will ultimately increase the rate of reaction. [IMAGE] [IMAGE] [IMAGE][IMAGE] Small surface area Large surface area Concentration
1/10 spoon of salt was added to the egg. The egg was stirred by the egg beater until it became a pale yellow and homogeneous fluid. Water was then added to the beaten egg. The volume of water was about 1/6 of the volume of the beaten egg. The mixture of egg, salt, and water was stirred by the experimenter for 20 seconds. Second, a frying pan was prepared for cooking the egg. The bottom of the pan was covered with a thin layer of olive oil and heated over medium heat for 1 minute on the cooking stove. The beaten egg was then poured into the pan. The egg was constantly stirred until it became fluffy and no liquid was present in the
...ond sets of data concluded that sucrose, glucose, and salt are hypotonic solutions that will remove water from a cell due to their tonicity. In the final part of the lab, results concluded that water potential moves along its concentration gradient (high to low) in an attempt to maintain equilibrium. It was determined that the orange and green solutions were hypotonic as they added water to the cells, whereas the blue, red, purple and yellow solutions were hypertonic as they sucked water from the cells.
(Cliffnotes) Osmosis played a really big role in the second part of the experiment. One of the beakers was filled with water and so was one of the dialysis tubes and both reacted with sucrose. When particles move through the membrane, whether they go in or out, the cell will either begin to shrink or grow, and can grow so much that it bursts. If a solution gains water it is called a hypertonic to the solution on the outside. If the opposite happens then the solution is hypotonic. When an equal amount of water particles are transferred between both solutions then they are both called isotonic solutions. (Lab notes) Dialysis is the process in which particles, that are different sizes, are separated using a selectively permeable membrane. In the experiment we used the dialysis tubes to test the permeability of water, sucrose and