• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# effect of concentration on the rate of reaction

Extracts from this document...

Introduction

In this piece of coursework I am going to investigate the effect of concentration of sulphuric acid on the rate of reaction on magnesium. Magnesium+ Sulphuric Acid � Magnesium+ Hydrogen Mg (s) + H�SO4 � Mg SO4 +H2 Scientific Knowledge The Collision Theory For particles to react they must collide with each other with sufficient energy to cause a successful reaction. In the case of Magnesium and sulphuric acid, the magnesium atom must collide with the hydrogen Ions from the sulphuric acid. The collision must have enough energy for the reaction to be successful. Step 1 The Hydrogen Ions are continually moving around in the solution. In doing this they will to collide with Magnesium. Step 2 If the reaction is enough energy from the collision the reaction will happen. Hydrogen gas and Magnesium Ions are produced. If there is a successful reaction the word equation will be; Magnesium+ Sulphuric Acid � Magnesium+ Hydrogen Mg (s) + H�SO4 � Mg SO4 +H2 In a given amount of time if there are a lot of successful collisions, a lot of hydrogen gas will be produced. The rate of a reaction depends on how many successful collisions there are in a given amount of time. If there are not many collisions, then the rate of reaction is slow. ...read more.

Middle

Magnesium ribbon (10cm) Distilled water Method 1) Set up the apparatus as shown above. 2) Clean the magnesium ribbon with sandpaper to remove the oxide layer. 3) Then cut a 1cm length of magnesium using the scissors. 4) Measure 25cm3 of sulphuric acid using the burette in to the conical flask. N.E read the burette at the eye level from the bottom of the meniscus. 5) Then add 1cm of magnesium and start the stop clock. 6) Swirl conical flask once and watch for the reaction to be completed. I.e. the effervesce has stop. 7) Record the time in seconds in the results table. 8) Repeats steps 3-7 with same concentration of acid to ensure the result are reliable. 9) Repeat steps 2-8 with the different concentration shown in the results table. Safety * Make sure you are wearing goggles because sulphuric acid is corrosive and if any off it got into your eyes it would be dangerous. * A corrosive substance has the chemical hazard of visibly destroying or irreversibly damaging living tissue by chemical action. * If any acid spills on your hands wash them immediately. * Make sure you wear goggles at all times. ...read more.

Conclusion

No reaction Takes place. The concentration of sulphuric acid. There will be more hydrogen Ions per unit volume if the concentration of sulphuric acid is increased. This means that there is more chance of a collision between the Magnesium Atoms and the Hydrogen Ions. The more successful collisions that take place with the magnesium atoms per unit of time, the faster the rate of reaction. See the diagram on the next page Evaluating Points which do not fall on the curve of best fit are anomalous results Above the line. to fast H2SO4 may have been more concentrated than . should have been of Mg . . to slow Below the line to slow Mg to big H2SO4 to dilute How ever there is a clear general trend in the graph showing that as concentration increase so does the rate of reaction. I can conclude my results. Burettes Stop clock Ruler Scissors X scalpel more accurate Conical flask prevents acid spray Swirling X use a magnetic stirrer Sanding Mg X may not have been evenly removed . affected the amount of Mg present. Any changes or improvements that I would do would be; repeat each experiment for a third time, take a class set of results and process to ensure the result were more reliable and use a magnetic stirrer instead of swirling. ?? ?? ?? ?? 1 Candidate Centre No. 71321 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Patterns of Behaviour section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related GCSE Patterns of Behaviour essays

1. ## The Effect of Concentration on the Rate of Reaction between Magnesium [Mg] and Hydrochloric ...

4 star(s)

Method 1. We got the equipment needed to proceed with the experiment. (BOWL, DELIVERY TUBE. CONICAL FLASK, BEEHIVE SHELF, STOP WATCH, HYRDOCHLOIC ACID, MAGNESIUM, GOGGLES AND MEASURING CYLINDER) 2. We filled up the bowl allowing the beehive shelf to be submerged under the water so we are able to put the delivery tube through it.

2. ## The effect of concentration on the rate of reaction of Magnesium with Sulphuric Acid.

3 star(s)

If we powder the solid metal magnesium, we increase the rate of the reaction because when the metal is powdered, more atoms are exposed, where as in the solid magnesium, the particles can only collide with the atoms on the outside of the metal.

1. ## To investigate the effect of the concentration of nitric acid on the rate of ...

length of time, and record how much gas has been produced from the reaction at certain time intervals. VARIABLES AND COLLISION THEORY: There are four main factors or variables which influence the rate of a reaction, and they are: 1. TEMPERATURE 2. CONCENTRATION (or pressure for gases) 3. CATALYST 4.

Yer that's right Danny I love you. I FUCKING WELL LOVE YOU!" There, I'd told him the truth. Now all I had to do was wait for his reaction. I'd told him how I felt, I told him what the phone call was about and I told him who was on the other end of the phone, but did he believe me?

1. ## Investigation into the Effect Concentration has on Rate of Reaction.

I will expect the rate of reaction to be highest when the liquid is all acid, undiluted. I can use the collision theory to explain why I think this. The collision theory says that for a reaction to take place, sufficiently charged collisions must take place between particles, and the

2. ## THE EFFECT OF BILE SALT ON THE ACTION OF THE ENZYME LIPASE

Place probe into the beaker of your mixture. 11. Using a burette add drops of sodium carbonate into beaker, until pH reads 10.0pH. 12. You are now ready to record your results: 13. Immediately start recording your graph. 14.

1. ## Investigating the Rate of Reaction Between Hydrochloric Acid (Hcl) and Magnesium (Mg).

This was due to an error in reading which could not be fixed. My fourth prediction, that if you change any of the factors mentioned in the variables list you will get an unfair test, was not proven. This was due to problems with time.

2. ## The purpose of this coursework is to investigate the factors which affect the rate ...

When the new bonds are made energy is released. From collision theory we know that for a reaction to take place the zinc and sulphuric acid molecules must collide with each other and furthermore those collisions must have enough energy to perform the reaction.

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to