Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Keren Long GCSE Chemistry investigation: the reaction of sodium thiosulphate with hydrochloric acid I am trying to investigate what happens when I change the concentration of sodium thiosulphate in the reaction. I have thought of a way to see how long it takes for the reaction to reach a certain point this point being when the X disappears off the bottom of the flask. I will watch the reaction happen in the conical flask and I will put a black cross underneath the flask. As soon as I mix the liquids together I will start a stop watch, then when I see the cross disappear I will stop it and this will be my measured time, this way I will be able to find out how long the reaction took each time we vary the mixtures. This is what the reaction would be written as: Hydrochloric acid + sodium thiosulphate sodium chloride + sulphur...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 151,744 others