Chemistry Coursework Sodium Thiosulphate Concentration

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Different people watching when the ‘X’ disappeared meant that there are more likely to be errors and could make our results less reliable.

Our results show a clear patter – as the concentration of sodium thiosulphate increased, the time taken for the ‘X’ to disappear decreased; this proves the collision theory.

Introduction My investigation is about the rate of reaction.

A rate of reaction is defined as how fast or slow a reaction takes place.

Measure volumes of sodium thiosulphate and water using results table Add 3ml of HCL into the flask.

Dissertation Proposals Examples - Chemistry Coursework Sodium Thiosulphate Concentration

Immediately time how long it took until the ‘X’ was no longer visible, how long it took for the solution to turn cloudy The person observing when the ‘X’ disappeared then recorded the time.Digital Stopclock – Used to time how long it took for the solution to turn cloudy and it’s a more precise reading than an analogue clock (mili seconds). Paper marked with ‘X’ – Used to see whether the solution is cloudy enough to make the ‘X’ not visible.Two Beakers – To hold acid and sodium thiosulphate in while we carried out the experiment.Use of Catalyst – If a catalyst is present then the reaction rate will increase due to the fact it replaces the amount of energy needed for the collision, allowing for more collisions to take place.Aim: We will be investigating the rates of reaction when we will mix together sodium thiosulphate and hydrochloric acid.When temperature is increased the particles move faster and with more energy, therefore the collisions happen more often and with more force so the reaction is faster.Four Factors which affect Rates of Reaction: Surface Area - Surface area is the measure of how much exposed area a solid object has, expressed in square units.Three Measuring Cylinders (two 10ml)(one 25ml) – Each used to accurately measure how much sodium thiosulphate, water and acid are used in the experiment.Pipette – Used to put small amounts of acid into a measuring cylinder because it holds small amounts of acid in it so I can receive an accurate measurement.Temperature - Heating chemical substances can make the molecules separate and move around faster.This can increase the speed with which they mix with surrounding molecules from other chemical substances, thus speeding up a reaction.

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Comments Chemistry Coursework Sodium Thiosulphate Concentration

  • A-Level Chemistry DOES INCREASING THE CONCENTRATION AFFECT THE RATE.
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    Home Chemistry. Question DOES INCREASING THE CONCENTRATION AFFECT THE RATE OF REACTION? Rates Of Reaction Coursework 2012 The effect of concentration on the time taken for a reaction to take place for Sodium Thiosulphate with Hydrochloric Acid.…

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    Formula. Sodium thiosulfate has a molecular formula of Na 2 O 3 S 2. Here the Na stands for sodium, the O stands for oxygen, and the S stands for sulfur. You can probably spot the sodium and sulfate in the name, sodium thiosulfate. The oxygen is also part of the sulfate, since a sulfate is a sulfur atom bonded to oxygen atoms.…

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    Sodium Thiosulfate - 50 mL of a 25% solution 12.5 g of a sodium thiosulfate solution immediately following administration of sodium nitrite. NOTE If signs of poisoning reappear, repeat treatment using one-half the original dose of both sodium nitrite and sodium thiosulfate.…

  • Rate of Reaction of Sodium Thiosulfate and Hydrochloric Acid SCIENTIFIC
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    Rate of Reaction of Sodium Thiosulfate and Hydrochloric Acid Rate Laws Introduction The purpose of this demonstration is to investigate the effect of sodium thiosulfate concentration on the rate of reaction of sodium thiosulfate with hydrochloric acid. The reaction, which produces solid sulfur, will be followed by measuring the…

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    Sodium thiosulphate coursework Free Essay, Term Paper and Book Report GCSE Chemistry - Sodium Thiosulphate Coursework We must produce a piece of coursework investigating the rates of reaction, and the effect different changes have on them.…

  • Can someone explain avogadros number in simple terms. - Yahoo Answers
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    Update im trying to show that there are double the amount of particles when concentration doubles. Update 2 my statistical trend is as follows 20ml sodium thiosulphate = 36.49 seconds 10ml sodium thiosulphate = 75.89 seconds so half the vol of sodium thiosulphate doubles time but im trying to find out the amount of particles in the solutions.…

  • The Reaction Between Sodium Thiosulphate and Hydrochloric Acid Cram
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    Our aim in this investigation is to find out how the concentration of Sodium Thiosulphate affects the rate at which it reacts with Hydrochloric acid. The equation for this reaction is Na2S2O3aq + 2HClaq = 2NaClaq + H2Ol + SO2g + Ss…

  • CHEMISTRY Rate of reaction experiments Flashcards Quizlet
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    Volume and concentration of acid, mass of marble chips. y axis in sodium thiosulphate + HCl. equilibrium, and organic chemistry. 48 terms. Chemistry C6.…

  • The Effect of Concentration on Rate of Reaction - Chemistry LibreTexts
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    Example \\PageIndex{1}\ The reaction between sodium thiosulphate solution and hydrochloric acid. This is a reaction which is often used to explore the relationship between concentration and rate of reaction in introductory courses. When a dilute acid is added to sodium thiosulphate solution, a pale yellow precipitate of sulphur is formed.…

  • Sodium thiosulfate - Wikipedia
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    Sodium thiosulfate sodium thiosulphate is an inorganic compound with the formula Na 2 S 2 O 3. x H 2 O. Typically it is available as the white or colorless pentahydrate, Na 2 S 2 O 3 5H 2 O. The solid is an efflorescent loses water readily crystalline substance that dissolves well in water.…

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