Investigating Rates of Reactions My aim is to investigate what factors affect the rate of reaction between magnesium and hydrochloric acid. The factor that I will be focusing on is the concentration of Hydrochloric acid. [IMAGE]Reaction Equation: Mg (s) +2HCl (aq) = MgCl2 (aq) +H2 (g) Magnesium + Hydrochloric Acid = Magnesium Chloride + Hydrogen There are several different variables you can such as temperature, concentration; surface area and whether or not to use a catalyst or not
Investigating Factors that Affect the Rate of Catalase Action Investigation into the factors which affect the rate of catalase action. Planning Aim: To investigate the affect of concentration of the enzyme catalase on the decomposition reaction of hydrogen peroxide. The enzyme: Catalase is an enzyme found within the cells of many different plants and animals. In this case, it is found in celery. This enzyme speeds up the break down of hydrogen peroxide into water and oxygen, as
Investigating Factors that Affect the Rate of Reaction There are certain factors which affect the rates of reaction in an experiment. These factors are: · Pressure · Temperature · Concentration * Surface area / particle size and * The addition of a catalyst The factors that I will be concentrating on are temperature, concentration and surface area / particle size. Pressure Pressure influences the rate of reaction only when the reactants are in their gas phase. Pressure
Investigating Factors that Affect the Rate of Photosynthesis in Elodea Aim: To find out which factors affect the rate of photosynthesis in Elodea. Variables: The variables that might affect the rate of photosynthesis in this experiment are: Temperature: When the temperature rises so does the rate of photosynthesis; this is because as the temperature around the plant rises the enzymes controlling photosynthesis inside the chloroplasts heat up and start moving around faster, the fast
Investigating the Effect of Exercise on the Heart Rate Introduction For it's size the heart has the huge capacity of pumping large amounts of blood, in the average adult's heart beats 60 to 100 times a minute, pumps between 70ml and 100ml of blood with each beat, circulates 5 to 6 litres of blood around the body per minute and about 13 litres of blood per minute during vigorous exercise. The heart will beat more then 2.5 billion times during an average lifetime. This investigation will
Investigating the rates of reaction of Sodium thiosulphate and hydrochloric acid Using my preliminary experiments I decided on using the following apparatus: - A conical Flask - A piece of White Paper marked with a black cross - Dilute hydrochloric acid - Sodium thiosulphate - Water - Measuring cylinder We must produce a piece of coursework investigating the rates of reaction, and the effect different changes have on them. The rate of reaction is the rate of loss of a reactant or the rate of
Investigating the Rate of Reaction of Calcium Carbonate Chips Introduction: ------------- In the reaction between calcium carbonate (marble chips) and hydrochloric acid a reaction occurs and the gas carbon dioxide escapes. In this experiment we are aiming to investigate how the rates of reaction of small and large marble chips change. We will be looking at both surface area and concentration. The experiment is done by reacting the CaCO3 with hydrochloric acid whilst a balance
Investigating the Rate of Reaction between Amylase and Starch Plan Aim: The aim of this investigation is to find out whether the volume of amylase affects the rate of reaction between amylase and starch. Prediction: I predict that the greater the volume of amylase then the faster the rate of reaction between the starch and amylase will be. I predict this because of the lock and key hypothesis. The lock and key hypothesis explains how the substrate molecule (the starch) fits inside
Investigating How Different Concentrations Affect the Rate of Reaction In this investigation I am investigating the effect of one factor on the rate at which calcium carbonate reacts with hydrochloric acid. I have decided to change the concentration of the acid to investigate how different concentrations affect the rate of reaction, and to discover what amount, at which concentration releases a higher quantity of gas. There are other factors, which could have been used as the variables.
Investigating Reaction Rates of Sodium Thiosulphate and Hydrochloric Acid Aim: To investigate the rate of reaction of Sodium Thiosulphate and Hydrochloric acid. In this investigation I will be varying the concentration of Sodium Thiosulphate only and not the Hydrochloric acid concentration. In this investigation I will use the following word equation: Sodium Thiosulphate + Hydrochloric acid In this investigation I will use the following symbol equation: Na2S2O3 + Hcl Prediction:
Investigating the Effects of Sodium Concentrations Have on the Rate of Photosynthesis Aim: To investigate the effects that different concentrations of sodium hydrogen carbonate on the rate of photosynthesis. Plan: Background Research ------------------- Photosynthesis Equation: Light energy & chlorophyll [IMAGE]6CO2 + 6H2O C6H12O6 + 6O2 ================================ Factors ======= The resistance of a wire depends on certain factors. Some of these variables
Investigating Factors that Affect the Rate of Reaction Between a Metal and an Acid Factors that may affect the experiment + fair test The variables that could affect the rate of reaction are the temperature, amount of magnesium, concentration of acid, surface area of magnesium and volume of acid. The variable I am going to change is the concentration of acid. I am going to measure how long it takes a piece of magnesium(no more than 20m in length) to react in different concentrations of
Investigating the Effects of Temperature on the Rate of Respiration of Blowfly Larvae This experiment was setup to investigate the effects of temperature on the rate of respiration of blowfly larvae. Background Knowledge The maggots involved in this investigation were blowflies at the larval stage of development, and they breathe through spiracles in the anterior and posterior segments. The respiratory tracts are not as developed at this stage, as the organism is not capable of flight
Investigating the Rates of Reaction Between Hydrogen Peroxide and Manganese Dioxide Aim: My aim for this investigation is to find out how concentration affects the rate of reaction between hydrogen peroxide and manganese dioxide. Equipment List: Syringe filled with water (gas collector); Conical flask; Manganese dioxide powder; Hydrogen Peroxide liquid; Measuring cylinder (5 ml); Timer; Clamp and Stand; Cork; Glass (delivery) tube; Water Basin with water;
Investigating the Rate of Reaction Between Marble Chips and Acid Introduction This is a test to demonstrate the reaction rate between marble chips (CaCO) and hydrochloric acid (HCl). Hopefully we will be able to prove that the concentration of the acid is directly proportional to the reaction rate. Aim To discover if the concentration of acid is directly proportional to the rate of reaction, by monitoring the amount of gas given off as the reaction takes place. Prediction We
Investigating the Rate of Reaction Between Sodium Thiosulphate and Hydrochloric Acid Aim --- I will be investigating the rate of reaction between Sodium Thiosulphate and Hydrochloric acid. I intend to find the difference in the rate of reaction when I change the concentration of the Sodium Thiosulphate, as I am only changing the concentration of the Sodium Thiosulphate I will keep the concentration of Hydrochloric acid the same at all times. [IMAGE]Hydrochloric + Sodium
Investigating The Rate Of Reaction Between Marble Chips And Hydrochloric Acid Planning I will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction. I will use concentrations of 50cm3 using different volumes of water and acid. Introduction I am investigating how the rate of reaction between marble chips and hydrochloric acid is altered when the concentration is changed. This is the word equation for my investigation
Investigating the Rate of Reaction Between Marble Chips and Hydrochloric Acid I am investigating the rate of reaction between marble chips (calcium carbonate) and hydrochloric acid. To find out about this, I am going to keep all other variables constant except the concentration of the
Investigating How Changing Variables in an Experiment Affects the Rate of Reaction The title of my investigation is FIZZY CHIPS. I will be investigating how changing variables in an experiment effects the rate of reaction. I will do this by observing a reaction between marble chips and hydrochloric acid. There are many variables, which will affect this experiment. The variable I will be changing is the amount of chips. To make this a fair test I must keep the other variables the same right
Investigating the Rate of Reaction Between Magnesium Ribbon and Hydrochloric Acid Aim: To find out the rate in which magnesium ribbon dissolves in different molars of hydrochloric acid, and which factors affect the rate of reaction. Prediction: The 'Collision Theory' says that particles can only react if they collide with enough energy for the reaction to take place. As well as the collision theory there are also other factors that will effect how quickly and effectively the reactions