This was because diffusion is the process where the molecules of both substances interact, with a constant kinetic energy. Therefore because the salt would increase the mass of the water, it would in result also increase the mass of the gummy bear because of the kinetic energy that interacts with both sets of molecules. In our planning stages we attempted to find a project idea which would vividly…
There is no concentration gradient created, and thus no changes noted in the weight of the bag.…
Results In the lab, 478 trials were conducted using a total of 956 crickets. The 478 pairs resulted in 264 wins for the resident cricket and 214 wins for the intruding crickets. These results produced a chi squared value of 5.230. The p-value calculated from this lab was .022.…
Coliscan easygel nutrient broth was stored in the freezer. Around 24 hours prior to sampling, the broth was moved to the refrigerator to thaw. The sampling procedure follows the procedure stated in the Coliscan Easygel Instructions. When we were ready to begin sampling, the thawed broth was placed into a cooler. We started sampling at Cornerstone pond then move to the Wyoming site, then downtown Grand Rapids, then Plainfield, and then Versluis lake.…
Introduction: Alka-Seltzer is a medication used to alleviate ailments such as heartburn and acid indigestion1. The ingredients that the tablet is made up of helps explain the name of the medication, the sodium bicarbonate is used to balance stomach acid, help spread the aspirin which allows the speed of absorption to increase, and reacts with citric sodium which produces carbon dioxide2. One initial observation of the Alka-Seltzer tablet and water is that when the tablet was dropped into the water, it began to fizz and make the water look like a carbonated drink such as Sprite. Carbon Dioxide is the gas that humans exhale and what is produced with Alka-Seltzer and water react, the chemical equation of the reaction is, (H2O + C6H8O7 + 3NaHCO3…
We concluded that distilled water gained the most weight and 30% and 40% sucrose lost the most weight. My hypothesis, each egg would gain weight, proved to be unverified after conducting this experiment due to the loss in…
There have been many great articles that have been published over the years . There are also many great authors such and Pam Munoz Ryan and Jennifer L. Holm. These two magnificent writers have produced many great articles. These authors have produced two very good articles such as “Freddie in the Shade” and Follow the Water”. Jennifer L. Holm is an American children's writer , and a person who won three Newbery Medals for her writing.…
From Table 1, there was a decrease in mass for bags A and B. This means that osmosis took place, and the water molecules were moving from the sugar solution to the sucrose in the culture dish. This is because the the sugar was more concentrated outside of the dialysis bags, causing water to move down the concentration gradient and outside of the bag. The masses of bags C and D increased. Osmosis took place here as well, since the solutions had different concentrations from that of the concentration of the solutions in the culture dish.…
Osmosis is the net movement of water towards higher concentration. In osmosis experiment, water likes to diffuse from an area of low-solute concentration to an area of high-solute concentration. The purpose of the osmosis experiment was to observe the diffusion of solutes and the osmosis of water through a semipermeable membrane, which was dialysis tubing. This experiment was done to examine, if the solution is hypertonic, hypotonic or isotonic.…
The groups concept for the distilled performance is to make it a presentational performance. Since we can not use actual props or costumes, it just makes more sense to make it presentational and allows for more creative thinking. Another concept for this performance that is being worked on is a presentational table; which will be further explained later. Other than those concepts, another concept that has been brought up is presenting this performance while in a semi-circle. By doing so, it allows for the audience to get the best view possible of the main acting happening while also recognizing the other sub actions happening in the back.…
The purpose of this lab is to understand the effect that dissolved impurities will have on the freezing point of a mixture and what additive will affect the the freezing point the most. The freezing point of a liquid is, the point of a substance when the temperature of the solid and the liquid is equal. When water freezes the water molecules become organized and come closer together forming crystal particles of ice. When a solute (like salt) and a solvent (like water) mix together the salt becomes an impurity and makes it so the solution can’t crystallize.…
Experiment 1. Title: How does the amount of baking soda affect its reaction with vinegar? Aim: To find out how different amounts of baking soda (soda bicarbonate) affect the length of its chemical reaction with vinegar (acetic acid).…
Single-component aromatic flavoprotein hydroxylase. Several single-component aromatic flavoprotein hydroxylases have been studied comprehensively such as p-hydroxybenzoate hydroxylase (8), phenol hydroxylase (9), 2-methyl-3-hydroxypyridine-5-carboxylic acid monooxygenase (10), salicylate hydroxylase (11), anthranilate hydroxylase (12), melilolate hydroxylase (13). Generally, the catalytic cycles of these enzymes follow the reaction shown in Scheme 3. The reaction is composed of two parts: the reductive half-reaction and the oxidative half-reaction. Scheme 3 shows the catalytic cycle of p-hydroxybenzoate hydroxylase, the most extensively studied enzymes of the class, and also represents a general model of reaction mechanism for other single-component…
Cecilia Wong Nature of the task and the research question: Two centimetre piece of potato is bathes into different salt solutions (0%, 5%, 10%, 15%, 25%, 35%) over a period of time, to determine the effect of different salt solutions on osmosis. To investigate the effect of increasing the concentration of sodium chloride (0%, 5%, 10%, 15%, 25%, 35%) on the process of osmosis, by calculating the mass change of the potato core (g, ±0.01g) at room temperate of lab (25.0˚C) Table 1: Raw data Table of Random uncertainties Equipment Limit of reading Random uncertainties Electronic balance 0.01g ± 0.01g Ruler 0.5cm ±0.5cm Table 2: Quantitative raw data The mass of the potato core (g, ±0.01g) at different sodium chloride concentrations (0%, 5%,…
This experiment examined the boiling process and the effect of added ingredients. Purpose of this experiment is to understand boiling process as well as the factors that affect this property. The objective of this experiment is to investigate the appearance and temperature of range of water that is lukewarm, scalding, simmering and boiling point. On top of that, we also need to determine the factors that boiling temperature of water alone and with various ingredients added.…