The purpose of this experiment was to observe the relationship between different solutions and their effect on the mass and length of a gummy bear. Gummy bears with the same relative size and colour were placed in 50 mL beakers with the same amount of their designated liquid. The different solutions studied were water, oil, vinegar, a simple sugar solution, and rubbing alcohol. In the end, based on the observations made, the majority of the hypotheses created were not proven to be correct. When the gummy bear was placed in roughly 40 mL of water for an estimated three days, it dissolved. The results did not support the hypothesis written, as due to the gummy bear dissolving before measurements took place, it could not be concluded for certain …show more content…
These changes from the initial measurements are quite minuscule and don’t really affect the gummy bear substantially. The results did not support the hypothesis that was created, as the gummy bear’s measurements, while small, did change. This is because, while the oil seemed to have a higher viscosity which in theory prevented the solution to be absorbed by the gummy bear, perhaps due to a rising temperature provided by the sunlight or inaccurate measurements after the experiment was completed, the results went against the hypothesis. Either way, the thickness of the oil prevented major alterations to the length and mass. When the gummy bear was placed in roughly 40 mL of vinegar for an estimated three days, it completely dissolved. The results did support this specific hypothesis, as predicted, the gummy bear would be negatively affected by the acid levels in the vinegar, breaking down the gelatin candy. Similar to the results and reasoning behind the water-submerged gummy bear, as the gummy bear was left for multiple days unsupervised there is no way to be sure how it got to the point of being dissolved. However, it likely grew in mass and length over the hours, before absorbing so much vinegar that it dissolved …show more content…
The mass and length of gummy bears either increase or decrease in specific solutions. Depending on the acidity, sugar-to-water ratio, viscosity, and other factors, the gummy bear was more prone to expand or shrink. For example, the gummy bear submerged in the sugar solution increased in mass and length due to the ratio of sugar in the solution while the concentration of rubbing alcohol caused the gummy bear to shrink and shrivel up. Sources of error were found in this experiment regarding the measuring tactics used. When attempting to measure the mass and the length of the sugar solution gummy bear, it was cut in half due to its jelly-like texture with the forceps and resulting in an immeasurable length and mass. The final mass could be far off due to the water and chunks of expanded gummy bears found in the beaker, leading to an inaccurate result. As well, for the sugar solution, the result could have been different if a more accurate measurement of the sugar needed was made. For the specific result, the hypothesis stated, the sugar solution needed to have an equal amount of sugar content to the gummy bear which did not occur. Ensuring that the beaker contained 10 grams of sugar was off, due to prerequisite calculations that lead to too much liquid in the beaker that needed to be removed. To be correct, the hypotheses that were wrong could
Of course, the various sources of error have affected the results from this lab. Since the initial mass of eggs used was different for each group, the experimenters had to find the percent change in mass to keep the results constant. To conclude, when the eggs were placed in a corn syrup solution with more solute, their masses steadily decreased. The inside of the eggs have a lower solute concentration than the corn syrup solution outside the cell. Water within the eggs flow outwards through the membrane to the syrup solution, decreasing the solute concentration.
A lot of lesson in this experiment, one is that people like different flavor of gum for different reasons, and two not all Gums are the same. Our possible source of error is that we could
Cold, room temperature, and hot water 3. Kool-Aid powder 4. A white piece of paper With these items, I will be conducting the following experiment. 1.
Additionally, it was difficult obtaining a piece of rhubarb that was thin and particularly red, therefore the effect could not be best observed in the cells. Part B: Design your own experiment Parts of this practical were taken and slightly altered from the following link http://www.markedbyteachers.com/gcse/science/investigate-the-effect-of-surface-area-on-osmosis-in-potato-tissue.html Aim: To observe the effect different surface area: volume ratios have on osmosis in potato tissue. Hypothesis: If the potato has a larger surface area: volume ratio, the quicker osmosis will take place and the larger the mass will be at the end of the experiment, therefore the difference in mass of the potatoes from the start of the experiment to the end of the experiment will be larger. Additionally, the potato pieces left in a saltwater solution will decrease in mass, whereas the pieces left in water will increase in mass.
The purpose of this experiment was to see which solute, Splenda, granulated sugar, or salt, would dissolve the fastest in distilled water. Solutes can only dissolve in solvents when they are polar. A polar bond is a covalent bond that has two atoms where the electrons forming the bond are unequally distributed (About Education.com). This causes it have a dipole or separation of electrical charges moment making it polar. For example, in a water molecule the electrons are not shared equally because the oxygen has more of a charge than the hydrogen bonds making the hydrogens pull towards the oxygen.
More water would make the solution less concentrated, causing the water move from the less concentrated solution to the higher concentrated gummy bear (expanding cell) and vice versa. Consequently, we must use the same amount of amount in every solution to ensure a fair test. Color: Each color of gummy bears represents a different flavor. To achieve this, different levels of glucose are contained in the gummy bears and, therefore, to keep the test fair, we will be using the same color of gummy bears throughout the experiment.
Between days one and two the difference in mass of the gummy bear was increased by 5.9 grams, having about a 169% increase in mass. (#2) Similarly, the volume of the gummy bear increased by 7.374 cm3 having a 246% increase after soaking in the
The coacervates that I observed were significantly larger than on the previous slide. However, there were fewer coacervates, and they were not as clumped together as before. After adding the third drop of hydrochloric acid, the solution appeared less cloudy, and there was a visible precipitate at the bottom of the test tube. The coacervates were much fewer in number, and it appeared that some were
Purpose: The purpose of this experiment is to investigate the movement of water into and out of a polymer. Hypotheses: • If Gummi Bears are submerged in tap water and distilled water, they will expand due to osmosis in order to create equilibrium in hypotonic solution • If Gummi Bears are submerged in salt water, they will decrease inside to create equilibrium in a hypertonic solution Materials: • 2 Gummi Bears • 2 plastic 8oz cups • 2 forks • Distilled water • Centimeter rule • Saturated salt solution • Paper towels • Electric scale • Permanent marker Procedures: 1. Obtain two plastic cups and two different color bears. 2.
In this experiment three gummy bears were put in different solutions to observe the effect of osmosis on them. The independent variable in this situation are the following types of water: tap, salt, and sugar. The dependent variable is the change in mass and volume from all three gummy bears. The gummy bear brand, the environment, and the amount of time in the solution are the constants of the experiment. After the experiment is competed, one can determine how the osmosis changes the gummy bears.
Before starting the test the eggs were put in 200 ml of vinegar to dissolve the shell to put in the energy drinks. When put in the vinegar there some bubbles that appeared and the eggs were floating. After 2 days they were taken out to be rinsed there where some foams on top of the beaker from the dissolved shells. The experiment will be set up with three test energy drinks and also a control beaker. the control beaker was filled up with 200ml of room temperature water.
Purpose The purpose of this lab was to utilize a series of tests that would determine the different properties of the tap water and oil. Density was measured using the mass of a liquid in a known volume, the specific gravity was determined by using a hydrometer, and viscosity was measured by using the weight of a falling mass to spin a cylinder completely submerged in the test fluid. The values determined from these tests could then be compared to known values to viscosity and density. Theory
The experiment shall use several concentrations of sucrose solution and a substance known as Methylene blue. A piece of potato/ carrot shall be placed in a boiling tube and the solution shall be poured into it. This tube shall have Methylene blue added into it. After incubation some of this solution shall be taken out with a pipette and inserted into a separate boiling tube containing the same sucrose solution however this solution shall be known as the pre-incubated solution. The drop shall be watched so as to see if the density of the water and concentration of sucrose has increased or not, displaying the water
Therefore, this experimentation indicated that the sucrose molecules cannot diffuse from the concentration of the dilute solution, while on the other hand the water molecules diffuse from the dilute solution to the concentrated one. Hypothesis: If the (independent variable) sucrose of the dilute solution is
Within the first minute, half an inch of water was removed out of the test tube. The errors that occurred in the experiment were not sealing the setup, acids not being kept at room temperature, and human miscalculation. Some ways that could have prevented those errors would have been to check the setup with precision and keep the acids at a room temperature and not below