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how does the concentration affects the rate of reaction
Hydrochloric Acid and Sodium thiosulfate: How reaction rate varies with Sodium thiosulfate concentration essay
Effect of Temperature on Rate of Reaction
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Effect Of Temperature On Rate Of Reaction PLAN: In this investigation I will find out the effect of temperature on rate of reaction. To do this I will put a piece of paper with an "X" marked on it under a chronicle flask and carry out the reaction of with Hydrochloric Acid with the concentration of 2M and Sodium Thiosulphate solution and observe how long it takes for the reaction to finish. I will repeat this with different temperatures. Apparatus: * Timer * 50g dm-3 Sodium Thiosulphate solution (Na2S2O3) * 2M Hydrochloric Acid * Conical flask * Thermometer * Bunsen burner * Heat proof mat * Wire gauze * White tile * Filter paper * A pair of Tongs Diagram: [IMAGE] Method: 1) Set up all the apparatus needed (as shown on the previous page) e.g. measuring cylinder, timer etc. Put a piece of paper with an "X" marked on it under the conical flask. . 2) Measure out 40cm3 of water, 10cm3 of Sodium Thiosulphate solution, and 5cm3 of Hydrochloric Acid 3) Pour the water and in the conical flask, (this ensures that the Sodium Thiosulphate solution is the right concentration). 4) Measure the temperature of the solution in the conical flask. 5) Then pour the Hydrochloric acid in the conical flask and start the timer. 6) Look from the top of the conical flask and wait for the "X" on the paper under the conical flask to disappear, once it has disappeared stop the timer and note the time it for the reaction to finish. Repeat this experiment but change the temperature of the mixture of water and Thiosulphate solution before pouring in the acid. NOTE: Make sure that you check the temperature before your pour the Hydrochloric acid in the conical flask; heating the solution to 50Ëš C
10. Point the flask away from everyone and open the two-way valve in order to release pressure from the flask. Remove the stopper assembly, then fill up the flask with water. Discard of the solution in the sink.
In a substance the rate of reaction will be quicker if it has a large
It is important however to note that the NH4 and K ions are still in
reaction is the rate of loss of a reactant or the rate of formation of
set amount of time can be used to measure the rate of reaction. A fast
will result in an increase in the speed of the rate of reaction it has
The Effect of Temperature on the Rate of a Reaction Aim and Hypothesis The investigation that we have chosen to do is how the effect of temperature affects the rate of reaction of hydrogen peroxide to water and oxygen using the enzyme catalase. I predict that the higher the temperature the faster the rate of reaction will be and the more oxygen there will be given off. I've based this prediction on kinetic theory (every 10 degree rise in temperature the rate of reaction doubles.) This is because the substrate will lock on twice as fast, as it is travelling twice as fast.
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 does not affect them much when they are either solids or liquids.
Rate is determined on how fast something is being consumed in a reaction, or how
The Effect of Temperature on the Rate of a Chemical Reaction Aim: In this investigation we are trying to find out how the temperature affects the rate of reaction. Hypothesis: I believe that the higher the temperature, the faster the reaction the reaction between the sodium thiosulphate and hydrochloric acid. This will happen because kinetic energy and the heat energy makes the particles move faster, collide faster and react faster; therefore they can break bonds easier. Scientific Knowledge: Firstly, I will explain the equation needed to follow out the experiment: [IMAGE]Na2 S2O 3(aq) + 2HCL(aq) 2NaCl(aq) +SO2 (g)+ H2O (l)+S(s)
Effect of Temperature on the Rate of Reaction between Sodium Thiosulphate and Hydrochloric Acid Investigation Chemical reactions are used in our everyday life, they literally keep us alive. They are used in food, respiration and everywhere else in the environment. A chemical reaction mainly occurs when reactants react together to produce a new product. The speed at which this reaction takes place is called the rate of reaction. The product produced has a number of particles in the solution that has formed from the reactants.
that the rate of reaction must be fast enough to make as much of the
The pH of the solution would alter the rate of the reaction if it was
Age and gender of a person have a slight effect of the body`s temperature. Due to the fact as you age your body finds it harder to control the core body temperature, meaning you could be less aware of yourself overheating or have a lessened realization/awareness of a sudden drop in your body's temperature . A newborn baby can also have difficulty with core temperature and could be high one moment and low the next , but after one year the baby ages and starts to develop, the temperature will become normal. The affect of gender with core temperature is slight , but it's still there and could be useful to know if someone is actually running a fever or not. Taking data from an experiment conducted by Carl Reinhold August Wunderlich who examined over a million temperatures taken from the armpit he deduced the normal , or “average” body temperature for an adult was 98.6 degrees fahrenheit , and saw that woman had a slightly
The Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate