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Rate of reaction experiments
Experiment on rate of reaction
Rate of reaction experiments
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Recommended: Rate of reaction experiments
Investigating the rate of reaction between marble chips and acid when variables are changed
Aim: to find out how changing the concentration of acid by diluting it affects the rate of reaction.
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 30ml of liquid made up of different concentrations of acid diluted with water.
Introduction: I have decided to vary the concentration of the acid as my variable I could have chosen other variables to change such as changing the heat of the acid, the size of the marble chips and many others variables. The word equation for this reaction is Marble + Hydrochloric , Carbon + Water + Calcium Chips Acid Dioxide Chloride and the symbol equation for this is CaCl + CO2 + H2O so CaCO + HCl , CaCl + CO2 + H2O.
Apparatus:
A Stop Clock - To determine how long it takes to collect enough gas to fill the measuring cylinder.
A Water Bath - To stop the water escaping from the measuring cylinder.
A Measuring cylinder - To measure the amount of gas that is given off.
A Chronicle Flask - Contains the marble chips, hydrochloric acid and the water that will make the reaction.
A Tube - To connect the conical flask to the measuring cylinder.
Method: Firstly, I will measure out 0.5 grams of powdered marble chips. Next I will measure out different concentrations of acid, these concentrations are, 30ml acid no water, 25ml acid 5ml water, 20ml acid 10ml water and 15ml acid 15ml water. I will then put the powdered marbled chips in the chronicle flask along with the acid and put the stopper on top. I will then record how long it takes for it to fill the measuring cylinder up. I will repeat each experiment 4 times so I can work out an average
Prediction: I predict that when I have a higher concentration I will have a faster rate of reaction. I believe this is so because as you increase the concentration of the acid, there are more acid particles in the same volume. Therefore there is a greater chance of acid particles colliding, and reacting with more particles on the surface of the marble. So, this means that the higher the concentration of my acid the faster the reaction.
Results:
Test/acid strength 30ml acid no water 25ml acid
5ml water 20ml acid
Input variables In this experiment there are two main factors that can affect the rate of the reaction. These key factors can change the rate of the reaction by either increasing it or decreasing it. These were considered and controlled so that they did not disrupt the success of the experiment. Temperature-
The purpose of the experiment is to study the rate of reaction through varying of concentrations of a catalyst or temperatures with a constant pH, and through the data obtained the rate law, constants, and activation energies can be experimentally determined. The rate law determines how the speed of a reaction occurs thus allowing the study of the overall mechanism formation in reactions. In the general form of the rate law it is A + B C or r=k[A]x[B]y. The rate of reaction can be affected by the concentration such as A and B in the previous equation, order of reactions, and the rate constant with each species in an overall chemical reaction. As a result, the rate law must be determined experimentally. In general, in a multi-step reac...
Apparatus: * 1 measuring cylinder * 1 test tube * 1 stop clock * A large gelatine cube containing indicator and NaOH * Hydrochloric acid ranging from 1-3 molars * A scalpel Diagram: Method: * Take the large gelatine cube and cut into 15 equal pieces * Place on piece of the cube into the test tube * Measure out 10mls of HCl in the measuring cylinder * Pour the HCl into the test tube with the gelatine cube and start the clock * Time how long it takes for the pink colour inside the gelatine cube to completely disappear * You will also notice that the cube dissolves slightly * Record your results and repeat this same process 3 times for each molar of acid: § 1 molar § 1.5 molar § 2 molar
Hydrochloric acid + calcium carbonate arrow calcium chloride + carbon dioxide + water. HCl(aq) + CaCO3(s) arrow CaCl2(aq) + CO2(g) + H2O(l) Things that affect the reaction rate of this experiment are: 1. The temperature of the hydrochloric acid. 2.
Rate of Reaction Between Marble Chips and Hydrochloric Acid. The aim of this experiment is to find out how different variables affect the rate at which the reaction between Marble chips (CaCO ) and Hydrochloric acid (HCl) is used. There are many variables that affect the rate of this reaction such as the following. 1.
to the marble chips. I will have 30 ml of mixture and split it in to
The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate
The more concentration or more volume there is of an acid, the more acid. molecules there are that can react with the chalk. The larger the surface area of a solid, the more surface there is for acid to collide. with and react with. Higher pressure pushes the molecules closer.
It will be when there is too much HCl for the marble chips to dissolve
5. Decreasing or increasing the pH slowed the rate of reaction. The pH of 7 was the best for the reaction. If there are more H or more OH in the solution then the reaction is inhibited, because they disrupt the active site.
Experiment is to investigate the rate of reaction between hydrochloric acid and calcium carbonate Hydrochloric acid + Calcium Carbonate Þ Calcium Chloride + Water + Carbon Dioxide 2HCl (aq) CaCo3 (s) CaCl2(s) H2O (aq) CO2 (g) There are a number of variables in this experiment and these are listed below as input variables and outcome variables.
My aim in this piece of work is to see the effect of temperature on the rate of reaction in a solution of hydrochloric acid containing sodium thiosulphate. The word equation for the reaction that will occur in the experiment is: Sodium thiosulphate + hydrochloric acid →, sulphur + sulphur dioxide +. sodium chloride + water ? where the sulphur is an insoluble precipitate.
An investigation into how changing one variable influences the rate of reaction between marble chips and dilute Hydrochloric acid
The Effect of Temperature on The Rate Of Reaction Between Magnesium And Hydrochloric Acid Planning I'm planning on investigating how temperature effects the reaction between magnesium and hydrochloric acid, the experiment will show whether the reaction will speed up or slow down with the change in temperature. Temperatures will range from room temp up until 70 degrees. The investigation will be a fair test because all quantities will remain the same for each test, each test will use the same amounts of hydrochloric acid and same size of magnesium, also the concentration of the acid will also not be changed. APPERATUS; · Conical flask · Bunsen Burner · Thermometer · Tri-pod · Protective matt · Stopwatch · Gauze · Measuring jug · Goggles
Ultimately when conducting this experiment I need to look at how to determine chemical change and how to measure