Isokinetic dynamometry testing on male university sport and exercise science students looking at Hamstring/Quadriceps ratio‚ peak torque‚ peak torque to body mass ratio and power. Abstract Isokinteic dynamometry testing is important in monitoring injury and performance. There are few studies that have looked at male university sport and exercise science students bilateral difference of the hamstrings and quadriceps at 60˚s and 180˚s.The purpose of the study was to look at injury and performance
Premium Muscle Normal distribution
Chemical Kinetic Models Simplified Global Chemical Kinetic Model In order to compare the two reactors used in our experiment‚ a simplified global kinetic model was used to describe the DRM reaction behavior in different plasma reactor. This model was already used by authors in the field of pollutant removal by using a plasma reactor [15‚ 21–23]. It is generally accepted that free radical processes are the main mechanisms in non-equilibrium plasma reaction [21‚ 24-25]. The chemical kinetics model
Premium Chemical reaction Chemistry Chemical kinetics
Molecule Polarity PhET Lab A study of electronegativity‚ bond polarity‚ and molecular polarity Introduction: In this atomic-level simulation‚ you will investigate how atoms’ electronegativity value affects the bonds they produce. When two atoms bond‚ a pair of electrons is shared between atoms. Electronegativity is a measure of a single atom’s ability to hoard electrons shared in that bond. In this lab you will work diligently‚ at your own pace‚ to answer a number of questions. To begin‚ from
Premium Atom Chemical polarity Chemical bond
Kinetics of a Reaction I. List of reagents & products 1. 1.0 M Copper(II) nitrate (Cu(NO3)2‚ 0.10 M Hydrochloric Acid (HCl)‚ 0.010 M Potassium Iodide (KI)‚ 0.040 M Potassium Bromate (KBrO3)‚ 0.0010 M Sodium Thiosulfate (N2S2O3)‚ 2% Starch solution‚ Water (H2O) II. Summary of Procedure. Part 1: Find the Volume of One Drop of Solution 2. Fill pipet with 3ml of distilled water 3. Mass a beaker and record 4. Put 5 drops of water into beaker and record
Premium Chemical reaction Potassium Liquid
purpose of the lab was to determine the molecular mass of Butane‚ and this was done by using the ideal gas law (PV=nRT). The materials used were: match‚ funnel‚ bucket‚ cylinder‚ thermometer‚ lighter‚ scale‚ and a wooden flynt. These materials are used to help collect and test the Butane gas. Butane gas was used because it is ideal at standard temperature and pressure. Procedure: 1. Rinse bucket and fill three fourths full. 2. Rinse all glassware. 3. Place thermometer in bucket. 4
Premium Chemistry Gas Pressure
doubted himself. Grant Achatz‚ is the only American chef to master the art of Molecular Gastronomy. People sought after progressive cuisine to at least experience it once. This family man and cancer survivor is a prime example of heroism. With knowledge of molecular gastronomy‚ there’s some weight to his name. Being able to take foods and give them new tastes and textures‚ is what gave his cuisine’s popularity. Molecular gastronomy is seen as “manipulating” the ingredients‚ instead of cooking them
Premium Fast food Food Fast food restaurant
CHEMICAL KINETICS RESULTS AND DISCUSSION The balanced equation of the reaction between sodium thiosulfate and Hydrochloric acid is: S2O32- (aq) + 2 H+ (aq) SO2 (g) + S (s) +H2O (l) Using beakers with the same diameter was very important in conducting the experiment. If different sizes were used‚ the visibility of the “x” on the paper beneath the beaker could disappear from view too early or too late than the hypothetical time depending on the depth of the solution. It was also significant
Premium Chemical reaction Reaction rate Chemical kinetics
KINETICS OF THE ACID DECOMPOSITION OF THIOSULFATE Aqueous solutions of thiosulfate‚ S2O32-(aq) are stable if neutral or basic‚ but decompose quickly when the thiosulfate is dissolved in acid according to the equation: Sulfur dioxide is a gas at room temperature‚ but is very soluble in water. Sulfur‚ a water insoluble solid‚ forms a colloidal suspension. As a result‚ the solution first becomes cloudy and then opaque. We can take advantage of the developing opacity of the reaction system to do a
Premium Rate equation Chemical kinetics Reaction rate
Abstract This experiment is to study and measure the enzyme activity of β-galactosidase in the different concentrations of o-Nitrophenylgalactoside (ONPG) using a spectrophotometer. The spectrophotometer was also set at 420nm‚ a wavelength which is best for recording the absorbance values for the experiment. From the results‚ 0.9mM ONPG solution has the highest absorbance and 0.1mM ONPG solution has the least. Also‚ 0.5mM ONPG solution has the highest rate of enzyme activity and it is the most efficient
Premium Enzyme Catalysis Chemistry
Chemical Kinetics‚ A Clock Reaction Abstract The purpose for the experiment Chemical Kinetics‚ a clock reaction is to figure out the reaction rate of a solution regarding its concentration‚ temperature‚ and also determine the effects of when a catalyst is present. The experiment resulted that the concentration‚ as well as its temperature can affect the rate constant inversely the outcome of the rate constant. By conducting the experiment‚ it is also discovered that the rate order of the reaction
Free Chemical kinetics Chemical reaction Reaction rate