The decisive evidence between water and sports drinks can be further explored through experimenting on the health aspects of an athlete, studying athletic performance, and analyzing post-performance recovery time. With modern athletes trying to reach peak performance, health experiments of different types of nourishment can greatly affect athletes. Dehydration, defined as a body fluid deficit, is one of the biggest perils in exercising (Wilk). “Generally, drinking water is better than drinking nothing, but drinking a properly formulated carbohydrate-electrolyte ‘sports’ drink can allow for even better exercise performance” (Shirreffs). Dr. Susan M. Shirreffs, School of Sport, Exercise and Health Sciences of Loughborough University UK, stated, “After exercise that has resulted in body mass loss due to sweat loss, water and sodium [the most common electrolyte] should be consumed in a quantity greater than the losses to optimize recovery of water and electrolyte balance.” It has been documented that dehydration negatively affects both the cardiovascular function and thermoregulation (Wilk).
Hydrate Lab The purpose of this lab is to analyze the percent water in a crystalline hydrate and to indentify the hydrate from a list of possible unknowns. The solid hydrate will be heated to remove the water, and the percent can be found by measuring the mass of the solid before and after heating. The hydrate will be indentified by comparing the percent water in the hydrate with the percent water calculated for the possible unknown. Before the lab there are pre-lab questions: 1. Describe the three general safety rules for working with a Bunsen burner.
Joel Barlow High School Honors Biology Michael Klein Wassink 11-5-2014 Lab: pH, Buffers & Biological Substances Problem How do organisms survive and function despite metabolic activities that tend to shift pH toward either acidic or basic ends of the scale. Hypothesis I predict that as I add varying amounts of 0.1m HCl and 0.1m NaOH to various biological substances the pH levels of those biological substances will go down with the addition of HCl and up with the addition of NaOH because Acids (HCl) release H+ into substances which makes their pH levels go down, and Bases (NaOH) accept H+ from substances which makes their pH levels go up. Materials • 4 goggles • 4 aprons • 50ml beaker • 1-100ml-grad cylinder • 3-colored pencils • Wide range pH paper • Tap water • Forceps • HCl (0.1M) • NaOH (0.1M) • pH 7 buffer solution • Milk • Potato homogenate • Egg white • Gelatin suspension Procedure 1. Pour 25ml of tap water into the 50ml beaker. 2.
iLab 1: Separation of a Saltwater Solution Devry University BIOS135 Professor Subbhalakshmi, Dhalladoo 11/01/14 Introduction The purpose of this lab experiment was, to practice using the scientific method and separate a mixture of salt and water based on the physical properties of each component. I will examine more closely the physical properties of matter. To do this procedure we must evaporate the water and leave behind the salt from the solution. In 103c the water evaporates and behind left is the salt. From this information, the percentage of salt verses water ions can be determined Ions are also produced in the liquid or solid state when salts interact with solvents (for example, water) to produce "solvated ions," which are more stable, for reasons involving a combination of energy and entropy changes as the ions move away from each other to interact with the liquid.
The simple addition of water to FeSO4 will not lead to the formation of FeSO4•7H2O. Determination of the number of molecules of water in a hydrate. If you do not know how many molecules of water are in one molecule of hydrate and want to find this out, it can be done by measuring the masses of the hydrate and anhydrous compound formed after the heating. For example, let’s assume that we do not know how many water molecules are attached to BaCl2. Let’s call this number X.
Your answer : a. increased osmotic pressure Predict Question 2: What do you think will be the pressure result of the current experimental conditions? Your answer : c. pressure above the left beaker Stop & Think Questions: Why do you think there is no pressure change? You correctly answered: b. Sodium is able to diffuse through the pores. Why do you think there was no pressure change?
Purpose: The purpose of this lab is to investigate whether mass is gained or lost during a chemical reaction. Hypothesis: It will be found out that the mass is neither gained nor lost during a chemical reaction but transferred. Materials: * Safety goggles * Erlenmeyer flask * Balance * Graduated Cylinder * Beaker * Iron (III) chloride solution * Copper (II) sulphate solution * Sodium bicarbonate * Test tubes (small, and large) * Rubber Stopper * Tweezers * Paper towel * Scoopula * Sodium hydroxide solution * Hydrochloric acid Procedure: 1. 5ml of iron (III) chloride was measured and placed in the Erlenmeyer flask. 2.
If Eugene’s blood PH is really low than administering sodium bicarbonate (NaHCO3) will help him get back to the range of 7.35 - 7.45. The NaHCO3 will act as a buffer by mixing with acids in his body and then reduce the acid-base imbalance. Since Eugene is a chronic alcoholic I would also run a kidney liver function test to check his enzyme levels, because a if they kidney or the liver is failing then it is not removing the toxins in the body and that will cause a buildup of toxins in the blood stream, resulting in brain
affect the enzyme activity, to get enzymes working there should be proper ph. to avoid denaturing of enzymes, changes in pH alters ionization of charged amino acids. In an experiment to determine the pH range over which the enzyme catechol oxidase is able to catalyze its substrate, this will also help determine the optimum pH in which enzymes work best. Materials • 7 test tubes • Test tube rack • Metric ruler • China marker • Wash bottle containing 1%
An MRI does not use radiation but measures the water content in tissue and since the myelin that protects the nerve fibers made of fatty tissue and repels water the MRI looks for these areas that are now holding water. The area usually shows up in one of two ways a bright white spot or a dark spot depending on the scan used. The MRI alone cannot diagnose MS by itself doctors use another test that looks at the CSF or cerebrospinal fluid. Cerebrospinal fluid or CSF is the clear colorless liquid that covers the brain and spinal cord. The CSF has two functions its primary function is to act as a shock absorber for the central nervous system.