4. Calculate the # of atoms of Magnesium that were involved in the reaction – use Avagadro’s number – remember units!…
Tables 1 and 3 shows the measurements of the 10-meter stretch of Bear Creek that includes a pool and a riffle. The first table also shows the recorded time and weather in which our class collected the data during that particular day. The upper, middle, and lower transects are measured using meters. Each of the transects are first measured by width and then by depth on the: Left edge, mid-stream, and right edge. Then there is description on the substate and the site on both the upper and middle transect.…
Fermentation is the chemical process converting sugar to gases and occurs in yeast and bacteria. In the experiment we conducted, we used sucrose and yeast and measured the fermentation carbon dioxide formation. The factors affecting fermentation that we tested in this experiment were temperature and the effect of a disinfectant. We measured the fermentation carbon dioxide formation by using a ruler and measuring the amount of bubbles in the tube that were formed.…
Is there a relationship between the different amounts of carbon dioxide produced and the concentration of sucrose in the…
Investigating the effect of different concentrations of glucose on the percent change in mass of Gummy bears according to their respective colours…
The objective of this lab was to determine the percent (by mass) of sugar in a non-carbonated beverage by measuring its density and using calibration curving showing the density and concertation of standard solution. The procedure used in this experiment was 2 50mL beaker and 10-mL volumetric pipet & pipet pump.…
The two types of fermentation that are well known are alcoholic fermentation as well as lactic acid fermentation. Fermentation is vital for many organisms, such as yeast and bacteria, because it allows them to obtain energy required to carry on life processes. Alcoholic fermentation is especially important for human beings, as it is used to produce alcoholic beverages, bread, and many other everyday items that are consumed (Alba-Lois, 2010). On the other hand, lactic acid is a waste product of certain bacteria (Lactobacillales), which is utilized to create many dairy products such as yogurt and cheese. In addition, humans can resort to lactic acid fermentation when oxygen is limited, so it is used as an extra source to obtain oxygen. In our experiment we will be using yeast, a single-celled organism that utilizes sugar as a food source, and it produces energy substances through the breakdown of sugar molecules. Specifically, the type of sugar as a source of food, impacts the speed of fermentation in yeast. In this lab, we will calculate the rate of fermentation in yeast with different solutions of sugar, such as sucrose, fructose, and lactose with glucose being the control. It is important to humans that the yeast uses the best sugar source during fermentation, as it creates important everyday items we consume like bread, alcohol, and…
Alka-Seltzer tablets are used to treat cold/flu symptoms as it produces CO2 when dissolved in water. The goal of this lab is to calculate the amount of NaHCO3 is needed to produce enough CO2 gas to fill the room.…
Hypothesis: If the yeast is placed in 5% glucose or sucrose solutions, then carbon dioxide production will increase over time. If boiled yeast is placed in a 5% sucrose solution, then carbon dioxide production will remain constant.…
The first test, we combined yeast with cornstarch in a plastic cylinder and let it sit with the gas sensor on top for six minutes, or until the graph stopped recording. The oxygen level was not constant for this mixture. Although there was no liquid added to this mixture, the yeast gave off a lot of carbon dioxide. The oxygen level started low and picked up a minute after the mixture was left alone. For the next trial, we combined the yeast with warm water and cornstarch in a plastic cylinder, with the gas sensor on top. The oxygen level started out low and slowly picked up during the middle of the experiment. The third trial we combined yeast with water. The oxygen level started out really high and it slowly deteriorated towards the end of the experiment. The final trial we combined yeast, sugar, and water. Like the first and second trial, the oxygen level started out low and then the oxygen level increased as the mixture was left untouched. This mixture of yeast combined with sugar and warm water made the yeast foam up after a couple of minutes. The foam laid on the top of the mixture as the oxygen level increased. Each time a gas sensor was placed onto a plastic cylinder containing a substance, this sensor would be hooked up to a laptop. The laptop would be recording how much oxygen our substance would be…
If I were to mix brown sugar, with yeast, and warm water together it should have a different reaction as opposed to other sugars. I believe that this mixture will cause a higher carbon dioxide output than other sugars. The belief being that a higher carbon dioxide output will occur due to brown sugar being denser and much sweeter.…
By monitoring the temperatures that the yeast mixture is in, one can study the growth and respiration rate (by the measurement of H20) in a water displacement. “Glucose is a syrupy mixture of dextrose, maltose, and dextrin’s containing about 20 percent water, used in confectionery and alcoholic fermentation” (Guthrie, & Fink, 2002). In order for fermentation to occur sugar or also known as glucose must be present within the yeast. When the yeast fermentation solution was used it made it easier to measure the effects of temperature on the yeast fermentation and the respiration or breathing room of the yeast and meets the lab requirements. Also yeast when combined with sugar excretes carbon dioxide in which was measured through the process of water displacement.…
Conclusion: Overall the resulting data supported the alternative hypothesis, in which the type of carbohydrate makes a difference on the amount of CO2 produced. When deducing the results, it was concluded that sucrose made the greatest amount of fermentation in the set up of yeast out of the three types of carbohydrates. In the data collected from sucrose, there was more carbon dioxide (CO2) produced in three of the four graduated cylinders, because the rate of fermentation can be determined by measuring the amount of CO2 produced. Therefore, in the end those three graduated cylinders had an excess amount of fermentation product, with the fourth graduated cylinder having some water molecules still left. Our results from sucrose conclude two graduated cylinders with +50(ml) of CO2, one graduated cylinder with 40.0(ml) of CO2.…
The aim of this experiment was to investigate the effect of different amounts of a substrate on the respiration rate of yeast and to compare this to the effect of different amounts of glucose on the rate of yeast respiration. The substrate which I chose to further investigate was fructose. Fructose is a fruit sugar which is one of the three, along with glucose and galactose, dietary monosaccharides that are directly absorbed into the bloodstream during digestion.…
The purity of CO2 in a urea plant is strongly influenced by the absorption process, starting from operation temperature and pressure until the concentration of the absorbent material. All operating conditions must be maintained and adjusted to reach optimal condition which is 99% (v/v) of the purity of CO2. Therefore, it is necessary to have a model that can be used to obtain optimal operating conditions in the process of absorption. The purpose of this study is to develop a model for the calculation of the CO2 purity at the Main CO2 Removal (MCR) unit in PT. Pupuk Iskandar Muda-2 (PIM-2) of ammonia plant in the Lhokseumawe of Aceh Province, and to get the optimum operating parameters to obtain the desired purity of CO2. Methyldiethanolamine…