Investigation of the Effect of Caffeine on Human Reaction Speed Introduction This lab report will be exploring whether or not human simple reaction speed is affected by the consumption of around 130ml of a caffeinated beverage. This report will also assess whether or not there is any correlation between regular caffeine consumers, and a change in reaction time. This experiment, even though had ought to produce inaccurate data due to the lack of control variables, proved to be worthwhile as the
How does surface area affect reaction speed? The aim of this experiment was to investigate how the surface area affects the rate of a reaction in between calcium carbonate and hydrochloric acid. My hypothesis was that if the surface area to volume ratio of calcium carbonate was increased, then the rate of the reaction will increase because there are more particles that are accessible by the hydrochloric acid, thus more particles that can react with each other. Variables Independent- Surface
that allow chemical reactions to occur in organisms with homeostatic constraints (McNeil2015). During this lab they we learned how pH affects enzyme activity as well as relate to the changes. Upon that we gained knowledge to describe how the concentration of enzymes affects the speed of a chemical reaction. As well learned how to correctly use a spectrophotometer. The pH effects on Enzyme Activity Introduction Enzymes are proteins that permit chemical reactions to arise in organisms
rate of a chemical reaction? Introduction: The experiment consists of enzymes speeding up a chemical reaction. An enzyme can speed up a chemical reaction because the function of an enzyme is that it acts like a catalyst which helps speed up a chemical reaction. The experiment consist of an enzyme because the enzyme would be the person trying to break the toothpicks and the substrate would be the toothpicks since the enzyme affects the substrate or there’s a chemical reaction making a new product
compounds that are never consumed during a reaction. (Campbell,2015) Enzymes are also strings of Amino Acid that have a 3-D structure. To speed up a reaction enzymes act as catalyst and reduce the amount of time and energy required for this to occur. An example of one would be an elevator you can always take the stairs down but if you take the elevator you will use up a smaller amount of energy and waist less time. Without enzymes most chemical reactions in the human body would happen extremely slowly
Experimental Investigation – Rate of Reaction Research Topic: The topic includes the effect of concentration and temperature on the rate of reaction between hydrochloric acid (HCl) and Sodium Thiosulphate (Hypo solution). There are multiple ways to test the rate of reaction between two substances, however the experiment we will be conducting involves placing a conical flask directly over a black coloured ‘x’ and recording the time it takes for the ‘x’ to become invisible after the two solutions react
How concentration affects the rate of reaction between Hydrochloric Acid and Sodium Thiosulphate Chemistry Coursework How Concentration Affects a Reaction Aim: The aim of this experiment is to find out how concentration affects the rate of reaction between Hydrochloric Acid and Sodium Thiosulphate. Introduction: This experiment will be carried out by drawing a cross on a piece of paper and mixing hydrochloric acid and sodium thiosulphate together to see if the cross disappears. The concentration
INVESTIGATION: REACTION TIMES. BY CAITLIN DAWSON TITLE: How different gender will affect the reaction rate of 13 to 17 years olds. ABSTRACT: This investigation entailed the study of wether gender will affect the reaction times when tested. The average visual reaction time for a human is 0.25 seconds (250 milliseconds) and the average touch reception is 0.15 seconds (150 milliseconds), adding both these figures gives and estimated group time of 0.40 seconds (400 milliseconds). The average reaction speed
that studies the speed at which a chemical reaction occur and the factor that influence this speed. What is meant by the speed of a reaction is the rate at which the concentrations of reactants and products change within a time period. Some reactions occur almost instantaneously, while others take days or years. Chemical kinetics understanding I used in the process of designing drugs, controlling pollution and the processing of food. Most of the time chemical kinetics is used to speed or to increase
position requires speed and agility/ quickness in the sagittal and frontal planes, power for running and throwing, hand-eye coordination, quick reaction time, rotational power for throwing, acceleration for scrabbling in the pocket, and muscle endurance. Running Back (RB) – Also known as the Halfback. o The Running Back position requires speed and agility/ quickness in the sagittal and frontal planes, power for running, hand-eye coordination for catching the ball, quick reaction time, psychological