# Rates Of Reaction Essay

3996 words - 16 pages

Investigation Rates of Reaction InvestigationAim: To investigate the effect of concentration on the rate of reaction between hydrochloric acid, water and magnesium. I am investigating the following reaction: Mg + 2HCl MgCl2 + H2 Magnesium + Hydrochloric Acid Magnesium Chloride + Water During this investigation we will be trying to find out how much affect different concentrations of hydrochloric acid has on the production of hydrogen (product) over a total volume of 100 cm 3 within sixty seconds. Our teacher had already organised for us to work in pairs of two and our partner throughout the investigation. Our teacher had also given us a rate of reaction pack, where I found the following equation on the first page (page 238). Mg (s) + 2HCl (aq) MgCl2 (aq) + H2(g) Rate of reaction=Amount of reactant used or product formed / Time I also found the following formulae in our provided rates of reaction pack:Average rate=Change in the volume of hydrogen / Time for the change to happen. Variables which may affect the rate of reaction:1) Temperature (potentially a little temperature rise could double the rate of reaction - particles can only react when they collide. If you heat a substance the particles move faster and therefore collide more frequently. This will speed up the rate of reaction) 2) Existence of catalyst (chemicals that speed up chemical reactions therefore the rate - Only a minute quantities of the catalyst is needed to produce dramatic change in the rate of reaction) 3) Surface area of solids (bigger surface area contributes to speeding up a reaction - you are only going to get a reaction if the particles in the gas or liquid collide with the particles of the solid. Increasing the surface area of the solid increases the chances of collisions taking place and therefore the rate of reaction) 4) Concentration of the solution (higher the concentration, the faster the reaction - Increasing the concentration of the reactants will increase the frequency collisions between the two reactants - we will investigate this and analyse whether this theory is correct) Why we chose this experiment We chose to experiment on how the concentration of hydrochloric acid affected the rate if reaction as we personally thought it would be more interesting, and would also be much easier to get a precise concentration rather than a precise temperature were it could differ quite easily. This would help us gain more reliable results at the end. Safety For safety reasons we kept the experiment safe by using goggles, tying back long hair and keeping our work space clean and tidy. Preliminary work This reaction included the different concentrations of hydrochloric acid so we could find out which concentration would be the best to work at. At the start we wasn't too sure on how exactly we were going to collect our results, we figured that it would be much easier to find the 'too fast reaction' and the 'too slow reaction' and then compromise between the two. We knew this...

## Find Another Essay On rates of reaction

### Investigating Reaction Rates of Sodium Thiosulphate and Hydrochloric Acid

2235 words - 9 pages 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

### Rates of Reaction - Sodium Thiosulphate and Hydrochloric acid

1973 words - 8 pages Rates of Reaction - Sodium Thiosulphate and Hydrochloric acid In this piece of coursework, I will study how concentration affects the rate of reaction. I will do so by timing the reaction of Sodium Thiosulphate with an acid. In this coursework, I will include background knowledge, prediction, safety, results, calculations, graphs, an analysis, conclusion and an evaluation. In my evaluation I will comment on how reliable my results were and how

### Investigating how surface area affects rates of reaction.

782 words - 3 pages Investigating how surface area affects rates of reaction.Background Info:Enzymes are biological catalysts. They break down the chemical they are uniquely made for, such as proteins, fats and some harmful substances like Hydrogen Peroxide.An enzyme basically works on a key and lock like system. The enzyme is unique to its self but many others may be close to the exact shape, but not quite. Therefore allowing substrates to fit into its activesite

### Rates of reaction

2843 words - 11 pages An excellent project, very perceptive -BACKGROUND INFORMATIONWhat affects the rate of reaction?1) The surface area of the magnesium.2) The temperature of the reaction.3) Concentration of the hydrochloric acid.4) Presence of a catalyst.In the experiment we use hydrochloric acid which reacts with themagnesium to form magnesium chloride. The hydrogen ions givehydrochloric acid its acidic properties, so that all solutions ofhydrogen chloride and

### Rates Of reaction- The reaction between limestone and hydrochloric acid

873 words - 3 pages think this as all the particles of limestone will be roughly the same size, the particles have a larger surface area than cubed limestone, therefore it will react the quickest. If you were to use cubed limestone it wouldn't be fair as no cube will be exactly the same size. In conclusion to this experiment, 0.5M of acid was the best to use as it had the best measurable reaction time.EquipmentThe equipment we will be using during this experiment is

### Marble chip investigation - rates of reaction, studying the effects of change in concentration of the acid

1745 words - 7 pages 稡oss head clamp稵ub稴topwatchSafetyHydrochloric acid is very corrosive, so care will be taken when handling it. Safety goggles will be worn throughout the investigation as the reaction could fizz violently and cause eye damage if it was to spit.Variables稵emperature稢oncentration of acid稴urface area of marble chips稭ass of marble chips稸olume of acidKey VariableThe only variable that I will

### An investigation to compare the reaction rates between potato an hydrogen peroxide and liver and hydrogen peroxide

1981 words - 8 pages An investigation to compare the reaction rates between potato and hydrogen peroxide against liver and hydrogen peroxide through loss in mass.Background information:Catalase is an enzyme that is found in all cells. This means that it is an intracellular enzyme. And enzyme is a biological catalyst. A catalyst is some thing that speeds up a reaction without being changed itself. Because of this enzymes and catalysts can be used again and again

### Rates if Reaction GCSE Cousrework

3160 words - 13 pages the reactants.6. The surface area of the surface of the marble.My VariableI have chosen to study how the concentration of one of the reactants affects the rate of the reaction. I have chosen this because along with altering the amount of reactants it is the only practical of accurately changing the conditions. To keep a temperature constant at any temperature would require an incubator or the like. There is no easy way to shake different test

### Order of Reaction / Rate Law

684 words - 3 pages The order of a reaction is the power to which the concentration of a reactant must be raised to give the experimentally observed relationship between concentration and rate The rate of a reaction depends in part on the concentrations of the reactants. For a reaction in which reactant A forms product B in one step, you can write a simple equation. A→B The rate at which A forms B can be expressed as the change in A (∆A) with time

### Rate of Reaction Coursework

532 words - 2 pages Rates of Reaction A chemical reaction can only occur between particles when they collide (hit each other). Particles may be atoms, ions or molecules. There is a minimum amount of energy which colliding particles need in order to react with each other. If the colliding particles have less than this minimum energy then they just bounce off each other and no reaction occurs. This minimum energy is called the activation energy. The

### Stop Saving Trees

1572 words - 6 pages concentration reactants, larger surface area etc. (Factors Affecting Reaction Rates, 2014). Rate cannot be directly measured, so instead measuring the reactant or volume of gaseous product as the reaction progresses.In this investigation, hydrochloric acid and sodium carbonate were used. Hydrochloric acid is a colourless and odourless solution of hydrogen chloride and water (EPA, 2014). Similar to hydrochloric acid, acetic acid is an organic compound

## Similar Essays

### Rates Of Reaction Investigation Essay

1543 words - 6 pages particles there are per volume of acid. Therefore, more collisions per second will occur and then there will be more successful collisions per second.Temperature of the acid - Rates of reaction increase with a higher temperature because the particles involved in the reaction have more energy to move (from the heat) so they collide more rapidly. This will give more successful collisions per second, and therefore it is essential to keep the

### Rates Of Reaction Essay

2549 words - 10 pages were so absurdly small they are all but indiscernible. Stability of conclusion. Obviously, with more time, more readings would have been taken to form a more accurate curve on the graph. However, I believe that sufficient information was recorded to form a firm conclusion and to prove the aforementioned theory to be correct. Bibliography: --------------- * www.purchon.com/chemistry.htm * BBC bitesize revision (online). * Website entitled: - Collisional Theory Of Reaction Rates * The Learning Centre (online.) * Chemistry Textbook.

### Rates Of Reaction Of The Halogenoalkanes

1616 words - 6 pages Rates of reaction of the halogenoalkanes scientific knowledge and understanding: Halogenoalkanes are classified as either primary, secondary or tertiary. In primary halogenoalkanes the halogen atom is covalently bonded to a carbon atom which is bonded to one other carbon, to two other carbons in secondary and three others in tertiary. Apparatus for a reflux Increasing the size of the halogen atom in the halogenoalkane decreases

### Chemistry Report: Experiment On Rates Of Reaction

3605 words - 14 pages Rates of Reaction CaCO3 + 2HCl → CaCl2 + H2O + CO2 In this report I will be suggesting my predictions on what the rates of reaction will be and what the actual rates of reaction are. I will do this by collecting data from experiments and I will show this by putting data into a table. The main aim of my experiment is to find the rate of reaction over time taken and the rate of reaction when the concentration of hydrochloric acid increases or