Lab Report Little Brother's Law

This further reinforces the thought that the eggs with a density over one are fresh while eggs with a density lower than one are on the rotten side. Egg C specifically was determined to be not fresh as it was floating in pure ethanol. There are many different ways that one could possibly measure the density of an egg, but the procedure in which we used water as a medium can proved to be very helpful. The conversion factor for the density of water is equal to one gram of water per one milliliter of water. When placing an egg in water, you can determine the density of an egg by whether it floats or not. If the egg floats, the density of the egg is under one gram per milliliter and the egg is most likely not fresh enough to consume. On the other side, is the egg sinks to the bottom of the water, it’s density is over one gram per milliliter and is fresh enough to eat. Throughout this experiment, parts of the procedure have emulated ways in which green chemistry is present in things that are performed in the lab. The big four in this experiment include preventing waste, designing benign chemicals and design for

Hypothesis: If I place an egg in vinegar, then the outer layer of the egg is going to become slimy and look like rubber. It will also become larger and bubbles will form on and around the egg.

The egg drop project is designed to use what we have learned in science and apply it to a more hands on project. The goal is to keep a raw egg from cracking or breaking after a 3 meter drop. There are quite a few constraints that go along with this project such as materials, time management, and deadlines. The only materials allowed to be used on this project are; 10 straws, 2 sheets of paper, 30 cm of tape, 5 Kleenexes, 1 sandwich sized plastic bag, 25 cotton balls, and 50 cm of string. The plastic bag must be used to contain the egg in case of breakage and the final product must fit into a 15 cm cube. All of the building work must be done in class.

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

1. Move the lid of the container up or down. Record the resulting volume and pressure

The 3 hypotheses created by the students, which are as follows, were put to the test during this lab. If an egg is submerged in distilled water, then the egg will expand in size. If an egg is submerged in corn syrup, then the egg will shrivel. If an egg is submerged in a salt solution, then the egg will shrivel. The hypothesis concerning the egg submerged in distilled water, was supported. The egg grew by 2.5 cm and weighed 12.5 grams more than it did in the beginning. The hypothesis concerning the egg being submerged in the corn syrup was also supported.The egg shrunk down to a significant size, the egg ended up being 22.42 grams lighter and a cm smaller than it’s original measurements. The last hypothesis, the one using salt water, was refuted. The students said the egg would shrink, like the corn syrup, when in reality it grew like the distilled water egg, in the end it had 13.19 extra grams and 2 cm that weren't present in the beginning.

An egg has a semi-permeable membrane, thus processes like osmosis could occur. Osmosis is the movement of water molecules from an area of higher water concentration to an area of a lower water concentration. Osmosis is important, especially for living organisms, as they help distribute nutrients in the body. An egg’s mass would change when it is soaked in different substances. The goal of this experiment was to investigate how an egg changes through osmosis. This experiment was done to show how substances affect the mass of an egg. To start off, an egg’s mass was measured by putting the egg in a beaker then placing it on a mass scale. The beaker was then filled with vinegar and left alone for twenty-four hours. After a day, the egg was taken

Diffusion and Osmosis Experiment with a Shell-Less Egg After Three days of Testing Methods with Water and Corn Syrup

During the course of this lab, an egg is placed in different solutions to observe its reactions to each individual solution. The egg is first weight when it is at its original state in order to differentiate a change in its mass. Then it is placed in each solution for about 24 hours in order to see a visible and evident reaction. The reaction involves a passive transport known as osmosis. Osmosis is the transfer of water across a selectively permeable membrane in order to find a dynamic equilibrium, which means both sides are completely balanced. However, only water is allowed to navigate inside and outside of the cell during osmosis. Water moves from a higher concentration to a lower concentration, which means that depending on the egg’s water supply compared to each substance, its mass should change. This was observed in 3 different solutions, which include vinegar, corn

The first instrument I used was a beaker, the second was a graduated cylinder and the last was a volumetric pipet. Each of these instruments was used to attempt an accurate measurement of 10mL of water and then weighing the water on an analytical balance to find the density by dividing the weight over the volume. I knew the density of the water at a certain temperature and compared that to my data to see which was most accurate. The next part of the experiment was to find the density of a sugar solution. I did this by mixing a certain mass of sugar with a certain volume of water until it reached a solution of 50mL. I then obtained 10mL of this solution with a volumetric pipet and put it into a vial and weighed the mass of the solution 3 times.

In this essay, the physics behind dropping an egg from a balcony without breaking it will be discussed. The final prototype consisted of multiple thick straws sticking out from a pyramid of 3 inch straws which held the egg. Starting with the pyramid, 3 inches were cut from the regular straws and attached with glue and tape to make a hollow pyramid shape. The regular straws were then attached to the pyramid to make them stick outward. To secure the object, tape was wrapped all around the straws that were sticking out. Altogether, straws, glue, and tape were used.

Abstract: Different environments have different effects on the mass of an egg. This was tested by placing the egg in vinegar, corn syrup, and tap water. The vinegar increased the mass, the corn syrup decreased the mass, and the tap water increased the mass. This is due to the different concentrations of each substance and the process of osmosis. Particles of higher concentration move to regions of lower concentration.

In this essay, the physics behind dropping an egg from a balcony without breaking it will be discussed. The final prototype consisted of multiple thick straws sticking out from a pyramid of three-inch straws. This pyramid was where the egg was placed. The pyramid was built first, three-inch pieces of straws were attached with glue and tape to make a hollow pyramid shape. Uncut straws were attached to the pyramid to make them stick outward. To secure the object, the tape was wrapped around the straws that were sticking out. Altogether, straws, glue, and tape were used. The tape was placed on the open spaces of the pyramid to keep the egg secure.

Which greatly increased after the 30 minutes the egg was sitting in the vinegar because it came from 64.25 to 65.24. All because of the process of osmosis because we knew that since the egg was sitting in the vinegar that it was going to experience osmosis, mind you vinegar contains water. Which was going to cause the egg to increase it’s mass because the plasma membrane of the cell is going to let the water in. After we moved on from the vinegar solution, we continued onto the syrup solution and we had to cover the egg in syrup and let it sit in the syrup for 24 hours. What happened after the egg was sitting in the syrup for 24 hours was that it’s mass decreased to 49.82 and not only did it decrease in mass but swelled up, it was bascially in a hypotonic state. However, what was most interesting was that once we removed the egg with a spoon and rinse it with water was that it came out shrivelled it was like it came from a hypotonic state to a hypertonic state. We saw that the egg increased than decreased based on the solutions that were involved in this experiment. Such as, the water caused the mass of the egg to increase but the syrup cause the egg’s mass to decrease. Our data showed that the solutions affected the egg’s mass by causing it to increase and decrease but also affecting the shape of the egg’s plasma

Therefore, the aim of this experiment is to calculate and discuss how the rate of change in mass with an increase of concentration of sodium chloride will show how the rate osmosis will differ on an egg due to its internal concentration.