Tripod Method Firstly I will draw a small dark cross on a piece of paper and place it on a bench mat. I will then put 40cm3 of sodium thiosulphate into a conical flask and place it on a tripod and gauze. I will heat the solution for a few minutes until the desired heat is reached, i. Next I will place the conical flask on top of the cross, pour 5cm3 of hydrochloric into the hot sodium thiosulphate solution and time how long it takes for the cross to disappear.
Why does Hydrochloric Acid dissolve magnesium?
|These reactions only happen if the reacting molecules collide properly. The rate of reaction is the speed of a reaction.|
|It is important in this practical to use appropriate apparatus to make and record a range of measurements accurately, including mass, time and volume. This includes the safe use of apparatus, and monitoring chemical changes.|
|The rate of reaction of magnesium with hydrochloric acid- Learn Chemistry||Each group of students will need:|
|A few health and safety ideas on risk assessment AIM for a high investigation-project mark - you have nothing to lose for your assessment! Decomposing hydrogen peroxide with a solid catalyst or soluble transition metal compound.|
As mentioned, hydrochloric acid is a strongly ionizing non-oxidizing acid, and magnesium is a very active metal. Please forgive any resultant repetition or failures of chronological order. Thank you very much, Laura [last name deleted for privacy by Editor] - Lincoln A.
Hi, yeh the magnesium ribbon reacts with the hydrochloric acid in a redox reaction, where the magnesium is reduced and hydrogen is oxidised as it gains electrons from the magnesium. It becomes MgCl which is soluble in solution so effervescence is seen as it dissolves and hydrogen is released.
Background knowledge you should just write about different factors affecting rate like surface area, concentration or temperature depending on which one you are looking at and explain why, for example with temperature talk about the kinetic energy and collision theory.
I think Kate is wrong: You are right, the magnesium is oxidized and the hydrogen is reduced. Additional good discussions on this topic can be found on threads and GCSE COURSEWORK.
CHEMISTRY. AIM. In the experiment we use hydrochloric acid which reacts with the magnesium to form magnesium chloride/5(2).
Chemistry Coursework Rates of Reaction Investigation Introduction In this investigation I am going to be investigating the reaction between marble chips and hydrochloric acid, and to see what differences in the rate of this reaction arise when different concentrations of acid are used.
The magnesium/zinc + acid reaction, you can investigate acid concentration and amount of metal and the zinc reaction is catalysed by copper and other ions in the acid).
Decomposing hydrogen peroxide with a solid catalyst or soluble transition metal compound. 3 cm of magnesium ribbon typically has a mass of g and yields 40 cm 3 of hydrogen when reacted with excess acid.
50 cm 3 of 1M hydrochloric acid is a six-fold excess of acid.
In this reaction, the magnesium and acid are gradually used up. Marble chips react with dilute hydrochloric acid to produce carbon dioxide gas. The rate of this reaction can be changed by changing the size of the marble chips.
GCSE Chemistry Coursework: Investigating the rate of a reaction Your task is to plan, and carry out, an experiment to discover how to change the rate the reaction between sodium thiosulphate solution and dilute hydrochloric acid.