... My aim of my coursework is to investigate the effect changing the concentration of Hydrochloric Acid has its rate of reaction with Sodium Thiosulphate. Please can you e-mail the answer or as much information as possible Thanks a lot Halora,London Please forgive the delay, we (the Chemistry ... thus will have more chance of colliding with the sodium thiosulphate. The more dilute acid (with the water added) will contain fewer particles of acid and thus will have less of a chance of colliding with the particles in the sodium thiosulphate mixture. This reaction rate will be slower. The rate ...

... is a statement that answers the aim of your investigation. Eg. The rate of reaction between HCl and sodium thiosulphate was investigated to be ... Therefore ... HCl and sodium thiosulphate reacts faster ... (under wateva conditions). Your evaluation should include: * a discussion of why or why not ... behind your findings. Eg. It is known from secondary sources that the rate of reaction between hcl and sodium thiosulphate is dependent on ... BeCauSE ... (eg. powdered sodium thiosulphate reacts faster because it gives a larger surface area for the reaction to occur) * anything that went wrong or ...

sodium thiosulphate and HCL I did an experiment where I changed the concentration of hydrochloric acid to see how this would affect the rate of reaction. I reacted HCL with sodium thiosulphate. I kept the volume of sodium thiosulphate the same throughout each experiment (25cm3). I altered the amount ... of HCL and water: Volume of HCL (cm3) Volume of water (cm3) 1. 25 0 2. 20 5 3. 15 10 4. 10 15 5. 5 20 6. 0 25 25cm3 of sodium thiosulphate used each time. For my evaluation my teacher says i need to get more marks...please help! I got one anomous result. The results showed that as the concentration ...

Sodium thiosulphate reation I am carrying out a peice of coursework on the reaction between sodium thiosulphate (0.4mol) and hydrochloric acid(3 mol). the aim of the experiment is to determine the rate equation of the experiment by altering the concentrations of each subatance independantly. but i ... have a few queries: 1. what is created when sodium thiosulphate reacts with hydrochloric acid? does it make a salt? if so what is its name and formula? 2. is there any preliminary history to this experiment that you know of that i could include in my plan to improve the overall mark, as the internet ...

... colorimetry and one titrating against sodium thiosulphate. Iv done one experiment using 50cm3 of iodine, 25cm3 sulphuric acid and 25cm3 of propanone. I then took out portions at regular intervals of 2minutes, and titrated it against sodium thiosulphate n added starch solution, the solution went ... readings were approximately similiar around 11cm3 of sodium thiosulphate was used..this cant be right can it? as the portions were removed at different times. what should be the change as the reaction proceeds to the amount of sodium thiosulphate used and why? This has arrived with me in error - it ...

... this question: 24.8g of sodium thiosulphate-5-water, Na2S2O3, was dissolved in water and made up to 1.00dm3. 23.6cm3 of this solution reacted exactly with 25.0cm3 of an aqueous solution of iodine. a. Calculate the concentration in mol dm-3, of thiosulphate ions, S2O32-(aq), in the solution. b ... of sodium thiosulphate-5-water, Na2S2O3, was dissolved in water and made up to 1.00dm3. 23.6cm3 of this solution reacted exactly with 25.0cm3 of an aqueous solution of iodine. a. Calculate the concentration in mol dm-3, of thiosulphate ions,S2O32-(aq), in the solution. 24.8 divided by RMM of ...

Hydrochloric acid and sodium thiosulphat I need some help with my conclusion. Im doing about reaction between Hydrochloric acid and sodium thiosulphate. Im increasing volume of sodium thiosulphate. I can't really advise on conclusions from results that i have not seen! The experiment should usually ... concentration of thiosulphate goes up, the rate of reaction speeds up, though it may level off near the end. I hope, incidentally, that you altered the CONCENTRATION of the thiosulphate, not the VOLUME ...

The Disappering Cross- When Sodium Thiosulphate reacts with hydrochloric acid There are various problems with your section about fair testing. "Non-variables" is not a scientific term "control (or controlled) variables" is correct here. "Type of measuring cylinder I will ... SUNSHINE). I expect for the largest measurements to be of the higher concentration ratio of sodium thiosulphate to water, and the smallest sizes will be of the lower concentration ratio of sodium thiosulphate and water (WHAT DO YOU MEAN BY THE 'LARGEST MEASUREMENTS'? DO YOU MEAN THE LONGEST TIME? IF ...

Experiment of sodium thiosulphate & I2 Recently, I have done a redox titration between sodium triosulphate and iodine. However, I was asked why the thiosulphate solution and the star solution had to be prepared fresh. Moreover, how can I find the weight of iodine in an iodized tablet with the help ... don't know what star solution is, but the thiosulphate may slowly revert to the sulphate. Dissolve the tablet and oxidise the iodide ions in to iodine using a known quantity of a suitable oxidising agent. Titrate the liberated iodine with sodium thiosulphate. eg 2MnO4- + 10I- +16H+ --> 2Mn2+ + 5I2 ...