Digestion Lab Report

gas bubbles serves as evidence that the catalase enzyme is working. As catalase is breaking the

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

After adding sulfuric acid to the mixture of NaBr, 1-butanol, and water there was a brief yellow stream that appeared and then became clear.

10. Which had the greatest average 1- OD (amount of bile acid adsorbed to meal particles), the standard meal with bile acid or the

10. Ba (NO3)2, barium nitrate produces pale precipitate when put in reaction with sulfuric acid.

The crude product was washed by taking the reaction product in the separatory funnel and adding 23 mL of deionized H2O. The mixture was shaken and allowed to settle until layers were observable. The top layer was the desired product and approximately 25 mL of aqueous layer was extracted from the separatory funnel. Next, 25 mL of 5% NaHCO3 was added to the separatory funnel in order to neutralize the acid. This mixture was swirled, plugged with the stopper and inverted. Built-up gas was released by turning the stopcock to its opened and closed positions, releasing CO2 by-product. This was done four times in one minute intervals. The solution was allowed to settle until layers were observable. The bottom layer that contained salt, base and water was extracted from the separatory funnel. The crude product was washed again as mentioned previously.

Although it did take some time, when red litmus paper was placed in the solution, it changed blue in colour, therefore highlighting that hydroxide ions are present in the solution. Station four can clearly be identified as a combination (redox) reaction, as a new product is synthesised by the combination of two reactants. The reactants, calcium and water combine together to form hydrogen gas and hydroxide ions.

Digestion is a complicated process that uses many different processes to digest food efficiently. It is necessary for not only us but for almost every organism. A major part in digestion is pH or how acidic or basic a substance is. pH helps digestion happen, the question is for the Stentor and the Rotifers at what pH ranges does their digestion occur? We will test that by using pH indicators, and observing the digestion happen under the microscope.

1. The purpose of sodium sulfate is as the drying agent. I rinsed the sodium sulfate with additional methylene chloride to have a more accurate amount of benzoic acid in case the benzoic acid precipitated.

The goal of the experiment was to determine the effect that fertilizer has on the health of an aquatic ecosystem that consisted of ghost shrimp, Malaysian trumpet snails, and elodea. The organisms were added to mason jars filled with water, along with varying amounts of water soluble fertilizer, and placed in a well-lit, temperate environment and monitored daily using qualitative observations and with readings from a dissolved oxygen probe and test kit. The hypothesis of the experiment that stated that if 187.5 grams of fertilizer is added to the ecosystem, then all of the organisms will be killed off because the overabundance of nitrates and phosphates in the water will cause eutrophication to occur was not completely supported by the data

Introduction Antacid is in a form of medicine to help prevent and or correct the acidity level in one’s body, focusing mainly in the stomach. The stomach contains a solution of hydrochloric acid with a pH level of approximately 1.5 (“Stomach” par. 1). The use of hydrochloric acid is to help the process of digestion in the stomach however, if there is a high number of acid, and is intense and excessively concentrated, it can result in symptoms of heartburn and acid indigestion. Indigestion is a feeling of pain and discomfort in the stomach in having difficulties in digesting food. Heartburn is a form of indigestion felt as a burning sensation throughout the chest, caused by acid regurgitation into the esophagus (“Indigestion” par. 3).

The heart's main purpose is to deliver oxygen to the body and clean the body from the digestion (carbon dioxide). Cardiac perform these purposes by accumulating oxygen-depleted blood from the body and pushes it to the lungs, where the blood will be taking in oxygen and disposing of carbon dioxide; the heart then collects oxygen-rich blood from the lungs and pumps it into tissues through the

is a result of excess acid in the stomach. Excess hydrochloric acid (HCl) in the stomach can

Sugar is good in moderation, however too much sugar is bad for your teeth and weight. Many foods we eat daily contain good and unhealthy sugars such as fruits, bread, vegetables, and even pasta (Coffman, n.d.).(Carbohydrates contain sugar (Coffman, n.d.). Normal white sugar doesn't contain any nutrients, however there are other sugar alternatives that are natural sugars and artificial sugars which are established in laboratories (Coffman, n.d.). We often hear or see sugar replacer on television commercials or many eating establishments, have you ever wondered if they are really good for you? Below are a few examples of Natural Sugars and Artificial Sweeteners (Coffman, n.d.).

The purpose of this lab was to understand how different solutions played a role in the digestion protein. By looking at different variables, such as temperature, and pH we’re capable of understanding just how certain substances functioned and when they didn’t. The data for all labs are clear and concise and give a clear understanding of what solutions work best. All three labs were placed in a warm water bath set at 37’C to stimulate the reaction as if it were taking place within the human body. This gives us a more accurate reading on how they would react at that set temperature. We concluded why certain tubes changed to the color they did and further explained it. This lab focuses primarily on two crucial