|
|
|
Disappearing X Experiment. Coursework about sodium thiosulphate and hydrochloric acid. Method, Results, Fair Testing, Evaluation included. Was marked with a passing grade.
Title: Disappearing X Experiment. Coursework about sodium thiosulphate and hydrochloric acid. Method, Results, Fair Testing, Evaluation included. Was marked with a passing grade.
Category: Science & Technology / Chemistry
Details: Words: 734 | Pages: 3.1 (approximately 235 words/page)
Disappearing X Experiment. Coursework about sodium thiosulphate and hydrochloric acid. Method, Results, Fair Testing, Evaluation included. Was marked with a passing grade.
Disappearing X Experiment
Introduction
I am going to investigate the rate of reaction between sodium thiosulphate (thio) and hydrochloric acid.
Hydrochloric Acid + Sodium Thiosulphate "" sodium chloride + water + sulphur
The reactants are both colourless, but one of the products, sulphur, is yellow, so we can use this fact to follow the rates of reaction. I am going to investigate how the concentration of the acid effects the speed of the reaction.
Apparatus
1 small measuring cylinder
1 large …showed first 75 words of 734 total…
You are viewing only a small portion of the paper.
Please login or register to access the full copy.
|
|
…showed last 75 words of 734 total…a faster reaction. If the solution is diluted, there aren't as many acid particles to collide with the thio particles and so the reaction is much slower.
Results
/mins
Acid/cm3Water/cm3Reaction Time 1Reaction Time 2Average Reaction Time
2501.522.332.12
2052.092.432.26
15102.242.542.39
10153.053.383.21
5204.585.555.26
/secs
Acid/cm3Water/cm3Reaction Time 1Reaction Time 2Average Reaction Time
250112153132.5
205129163146
1510144174159
1015185218201.5
520298355326.5
Analysis/Conclusion
We discovered that 25cm3 hydrochloric acid and 25cm3 sodium thiosulphate solution had the fastest reaction rate, just as we had predicted.
Need a custom written paper?
|
|
275 words per page