Gummy bear lab Report Introduction We are learning about the hypertonic, hypotonic, and isotonic solution in class. So for better understanding of this we are doing an experiment with gummy bears and look what happen if we put them in different solutions. Hypertonic- A hypertonic solution is a particular type of solution that has a greater concentration of solutes on the outside of a cell when compared with the inside of a cell. Hypotonic- solution that has less solute and more water than another solution. Isotonic- In this solution the free movement of water across the membrane without changing the concentration of solutes on either side. Problem/Question- How much will the shape, size, and color change if you put it in water, salt water, Kool -aid and chlorine overnight? …show more content…
Measure the mass using a triple beam balance or other scale to the nearest tenth of a gram . We are takin same color gummy bears yellow Day 1: (a) Choose four gummy bear from the teacher. Use the equipment available to measure your gummy bear and record the data in the chart for Day 1 Day 1: (b) Put the bear in a cup labeled with your names, class period and liquid. Add 50 ml of water to the cup and allow it to sit for two days Day 2: Carefully remove the gummy bear from the cup of water and use a paper towel to dry it off to prevent it from dripping all over the place. Record your data in the correct portion of the chart. Determine the amount of change for each measurement and record it in the chart. Red (outside) Yellow (Inside) Trial 1 Trial 2 Trial 3 Type of Water Mass (g) Height (cm) Color Shape Mass (g) Height (cm) Color Shape Mass (g) Height (cm) Color Shape Water 9 4.6 yellow bear 10.6 5 yellow bear 10.2 5 yello mash potatos Sugar 10.4 3.8 yellow bear 10.9 4 yellow bear 11.3 4.9 dark yellow
Dependent: is the size of the gummy bear after it was soaked in regular water, salt water,baking soda water, and vinegar.
The procedure of the lab on day one was to get a ring stand and clamp, then put the substance in the test tube. Then put the test tube in the clamp and then get a Bunsen burner. After that put the Bunsen burner underneath the test tube to heat it. The procedure of the lab for day two was almost exactly the same, except the substances that were used were different. The
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.
I also predict that solution concentration 0.3 will be isotonic because of the pressure potential. As the water moves into the cell it pushes up against the cell wall this is called the pressure potential and it increases the water potential until an equilibrium is reached, and because the cell is so inelastic it takes very little water to achieve this. That's why I believe in-between 0.3 and 0.4 will be isotonic as it is very close to pure water. Background Information Osmosis - The net movement of water molecules from a region of high water potential to a low water potential, through a selectively
Solutions have three different stages that the solutes can be classified in: isotonic, hypertonic, and hypotonic. Isotonic is when the solutions have equal amounts of solutes. Like equilibrium, there is no net change in the amount of water in either solution. When the solutions have different concentration of solutes then the one with less solute is hypotonic and the one with more solute is hypertonic. Hypotonic takes in the solute from the hypertonic side that gives away the solute.
4. Pour about 300mL of tap water into the beaker. Set up a hot-water bath using a hot plate, retort stand, and thermometer clamp. Alternatively, use a Bunsen burner, retort stand, ring clamp, thermometer clamp, and wire gauze.
I am going to carry out an experiment to measure the change in mass of
Abstract: Marshmallows have more Calories per gram. Marshmallows have .2079 J/g℃ and cheese puffs have 1.08x103 J/g℃. My hypothesis was that marshmallows have more Calories per gram and my results confirmed my hypothesis because there is a .2068 J/g℃ difference.
Immediately put the cardboard cover back onto the calorimeter. Stir gently for 2-3 minutes while monitoring the temperature. Record the temperature after it has remained constant for 1 minute.
Then, repeat steps 7-11 another 4 times but with the room temperature water. For the room temperature water just leave it in the room but try not to change the room’s temperature. 15. Try to put all your recorded data into a table for organization 16. Repeat the entire experiment for more reliable data.
3.) Divide your 30g of white substance into the 4 test tubes evenly. You should put 7.5g into each test tube along with the water.
Isotonic solutions are when the solute concentration outside of the cell is the same as it is on the inside of the cell. Water moves both in and out of the cell, there is no net water movement, and this solution has no effect on the cell. Hypertonic solutions have a higher solute concentration outside of the cell than inside, will make a cell shrink, and the net movement of water is water moving out of the cell. Hypotonic solutions are the opposite of hypertonic solutions. This solution has a higher solute concentration on the outside of the cell than the inside, the net movement of water is into the cell, and causes cells to swell and possibly
Rinse a 25mL buret with three 5mL portions of standard permanganate solution. Fill the buret with the standard permanganate solution and record initial and final readings.
Ultimately when conducting this experiment I need to look at how to determine chemical change and how to measure