The purpose was to crest five separate layers of colored sugar water. The concept of the lab is to find the density of the colored sugar water by dividing mass over volume. Mass is a measure of the amount of matter in an object. Volume is the quantity of 3 dimensional space occupied by a liquid, solid or gas. Density is the measurement of an object's mass per unit of volume. The lab was setup to study the concept on how to calculate the density by mass divided by volume. The independent variable is the mass of the sugar. The dependent variable is the density of the sugar H2O. The constant variable is the volume of the H2O.
The hypothesis in this lab is if the layers of sugar have a higher sense the substances won't mix. This hypothesis was
Finding Out the Changes of Mass in Potato Chips Due to Osmosis Aim: We have been asked to investigate the effect that osmosis has on potato chips. Prediction: I predict that the potato cylinder in the lowest sugar solution (water) will gain the most mass through osmosis, whereas the 80% sugar concentration will lose the most mass through osmosis. I predict this because I think that the potato chips will try to gain and lose water between the two sides of its cell wall in order to reach an equilibrium between them. Because the 80% sugar solution has a high amount of sugar molecules, which can not diffuse through the membrane, I think that the potato will lose water in order to make the solution on the outside of its membrane equal to the water concentration on the inside (thus losing mass). I also predict that the other concentrations (60%, 40%, and 20%) will lose mass, but in lower numbers compared to the 80% sugar solution (the lower the concentration, the higher the mass).
Regarding the densities of Coke and Diet Coke, I believed that the density of coke would be greater than the density of Diet Coke. Because the content of Coke contains more sugar than Diet Coke, it would contain more mass and since density is mass dependent, Coke would be denser than Diet Coke. From the results of the experiment, there was a slight difference between the densities of Coke and Diet Coke. The measurements obtained from the pipette and the graduated cylinder demonstrated that Coke is denser than Diet Coke while Diet Coke was shown to be denser than Coke using the burette. With the pipette, the average density of Coke is 1.02 and the average density of Diet Coke is 0.99. With the graduated cylinder, the average density is 0.976968 and the average density of Diet Coke is 0.95. With the burette, the average density of Coke is 0.99 and the average density of Diet Coke is 1.0. Among the three instruments, the most precise was the graduated cylinder and the most accurate was the volumetric pipette. Since density is defined as mass/volume, changing the volume of Coke or Diet Coke would have changed.
These trends on the graph represent the mass of the curd as each trial was being completed. The 1st trial (Red) is the lowest amount of lemon drops added to the milk (5 drops). Its mass came out to be an average of 20.3 grams where it stood in between the other two trials. The 2nd trial (Green) had an average mass of 19 grams below the 1st and 3rd trial. The 3rd trial (Blue) had a mass of 22 grams where it was above both 1st and 2nd trial. As more lemon drops were added the lighter the mass of the curd was. When less drops were added the thicker and heavier the curd mass
The research question asks how the solute concentration in the solution would affect the change in weight of the potato. The hypothesis posed in this lab was if the potato is placed in a 0.0M solution then it will increase in weight and if the potato is placed in a 0.2-1.0M solution then it will decrease in weight. The results yielded from the lab supported the hypothesis. When the potato is placed in a 0M solution it will increase in mass because there would be less solute in the environment, therefore making it hypotonic, causing the cell to swell up and get bigger. When the potato is placed in a solution that is 0.2-1.0M it will decrease in mass because there would be more solute in the environment, therefore making it hypertonic, causing the cell to lose water and possibly plasmolyze.
The mixture was poured through a weight filter paper and Sucrose washed with a 5ml of dichloromethane. The resulting solid was left in a breaker to dry for one week, to be measured. Left it in the drawer to dry out for a week and weighted it to find the sucrose amount recovered amount.
Investigating the Effect of Sugar Solution on the Weight and Size of Potato Cells Aim: To investigate whether the different concentration of sugar solution will affect the weight and size of the potato cells. General background information: Osmosis is defined as the movement of water or any other solution's molecules from an area in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as a cell wall, which lets smaller molecules (E.g. water) through but does not allow larger solute molecules to pass through. The molecules will continue to diffuse until the area in which the molecules are found to reach a state of equilibrium, meaning that the molecules are equally distributed throughout the cell, with no area having a higher or lower concentration than any other hence equal. Hypothesis/prediction: For this particular investigation I believe that the lower the concentration of the sugar solution in the test tube the mass of the potato will be greater and the longer the potato cells will be.
The project I am interested in doing is to make a color magnitude diagram of a star cluster, which will result in a graph similar to an HR diagram. The open star cluster I have chosen is NGC 457, or the Owl Cluster. I chose this one because it is easily observable with right ascension of 01h 19m 32.6s and Declination +58° 17′ 27″. NGC 457 is roughly above the air mass of 1.5 between the hours of 2100 to 0600 towards the end of October. The open cluster is in the constellation Cassiopeia, and is fairly bright without having a high density of stars. This ensures I will be able to observe it with ease, and there will not be too many stars which could potentially cloud my data. I will be plotting the color magnitude along the x-axis and the apparent magnitude of the stars within the cluster.
in a few areas- A Chip in the Sugar is quite spread out over a
Aim The aim of the experiment was to compare the densities of expanded polystyrene foam and corrugated cardboard using a ruler, a micrometer, a vernier caliper, and an electronic balance. Introduction Density is the amount of substance per unit volume. The density, is a measurement of how the substance is tight together. The Greek scientist Archimedes is the person who discovered the fundamental of the density.
To Determine The Effect Of Temperature On Mass Of Butter Formed When Heavy Cream Is Shaken.
How Does the Color of a Drink Affect the Way Sweetness is Perceived Niah M. Wilson and Eman Shek Parkview High School October 11, 2017 Abstract In the experiment, ten participants were chosen, five boys and five girls. Each participants would have three cups with three different colored liquids placed in front of them. In order to get the most accurate taste from each participants, each participants would receive some crackers and water to cleanse their pallet for each transition. Before drinking the liquids each participant observed each of the drinks.
Determining the Concentration of the Cell Sap in Potato Storage Tissue Aim: To determine the concentration of the cell sap in potato storage tissue. By using Osmosis, determine what the sugar concentration of cell sap is. Prediction I predict that the potato segment in the distilled water will definitely gain in weight because the solution outside it has a much higher concentration of water then in the cell sap meaning Osmosis will occur and the potato segment take in water. I predict that 0.2M sugar solution will also gain weight because it still has quite a high concentration of water outside the potato. The potato in the 0.4M solution will gain weight but the potato in the 0.6M and 0.8M solutions will lose weight.
Osmosis in Potato Tubes Osmosis: Osmosis is the movement of water molecules through a semi-permeable membrane from a high concentration to a low concentration. Diagram: [IMAGE] [IMAGE] Aim: To see the effects of different concentration of sugar solution on Osmosis in potato tubes. Key factor: In the investigation we change the sugar solution from: 0%-10%-20%-30%-40%-50% this is the independent variable; the dependant variable is the change in mass. Prediction: I predict that all the potato tubes in pure water or low concentration sugar solution will swell because water enters their cells by osmosis.
We left these cups sit for twenty- four hours and then we observed them. The second experiment we set up involved dialysis tubing which was acting like a membrane. In the dialysis tubing we put a liquid that was made of starches and sugars. We then put the dialysis tubing into a beaker of water wh... ... middle of paper ... ...
Therefore, the Number of moles × molecular mass = mass of the sugars in grams in 10 mL of distilled water (with uncertaintyof ±0.2 mL on the graduated cylinder)