• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6

# Investigate how long it takes to make magnesium ribbons disappear in different concentrations of Hydrochloric acid.

Extracts from this document...

Introduction

Aim: To investigate how long it takes to make magnesium ribbons disappear in different concentrations of Hydrochloric acid. Prediction: I predict that the piece of ribbon placed in the highest concentration of hydrochloric acid will take less time as the rate of reaction is faster. There will be more particles of the reactant knocking between the acidic particles which makes the rate of collisions higher. I also predict that the piece of ribbon placed in the least concentrated hydrochloric acid will take much longer as there is not enough energy or the rate of reaction is much slower. Hence, the number of particles colliding with each other is minimal. High concentration of hydrochloric Low concentration of hydrochloric acid. acid. Apparatus: * Ruler: used to measure the length of magnesium ribbon-for fair testing. * Hydrochloric acid: 0.1M, 0.2M, 0.4M, 0.5M, 0.8M and 1.0M-variety of concentrations, so as to get accurate results. * Magnesium ribbon. * Beakers: used instead of test tubes-so the ribbon has more surface area to cover. ...read more.

Middle

I will time how long it takes for each magnesium ribbon to disappear, and write out the results on a table. Results: Experiment 1: * I repeated the experiment to find any anomalous results. Experiment 2: Conclusion: As shown in the graph my conclusion went according to my prediction. The magnesium ribbon in the highest concentration of hydrochloric acid disappeared fastest out of the other concentrations. When reacting with the acid, it caused white puffs of smoke to be let off; (hydrogen gas- tested using delivery tube and a lighted flint). I also observed that the ribbon moved around the beaker fizzing and producing a lot of bubbles. This is because the rate that the particles are reacting is so fast that the ribbon is whizzing around colliding with the acid, giving off hydrogen. The ribbon in the lowest concentration of hydrochloric acid took the longest time to disappear. When reacting with the hydrochloric acid, I observed very little reaction. There were a few bubbles and hardly any movement and there was no visual of hydrogen gas being given off. ...read more.

Conclusion

The investigation was quite successful and some patterns, as mentioned in the conclusion, were found explaining how different concentrations effected the rate of reaction. To further extend this investigation, I could continue testing how different concentrations effect the rate of reaction but this time make the concentrations higher. I could also bring other factors, which effect the rate of reaction, such as catalytic factor, surface area and/or temperature factor. I would consider the temperature factor, as it is more efficient. If I increased the temperature in an experiment, there will be more particles colliding with enough energy to make the reaction happen, the initial energy is known as the activation energy. An example of an experiment that could demonstrate how this would work would be when baking a cake. The hotter the oven the quicker the cake will bake. Another example would be when considering enzymes. The temperature has to be considered so to give maximum yield and not denature the enzyme. An example of this would be when baking bread; the yeast is placed in warm enough water, so that it could start to fermentate. However, the temperatures should not be too high or else the yeast would denature. By Samira Quraishy. ...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. ## How Concentration Affects the Rate of Reaction of Hydrochloric Acid and Magnesium Ribbons

If the concentration of any solution is high that means the number of particles present in the solution is great, which would also result with more successful collisions, and therefore rate of chemical reaction would increase. Surface Area. If there is a solid reactant involved in a chemical reaction,

2. ## how long it takes for magnesium ribbon to be eaten away by hydrochloric acid.

The variables that could be used are: 1. Concentration 2. Particle size/surface area 3. Pressure (for reactions involving gas) 4. Temperature 5. Light 6. Presence of a catalyst. These variables can be used because: 1. The more concentrated the reactants, the greater the rate of reaction will be.

1. ## Rate of reaction of hydrochloric acid and mangesium ribbon.

Repeat steps 5 to 12 changing the concentrations of the acid 17. Repeat steps 5 to 15 to make sure that my results are reliable and reproducible Results Raw results A table to show the results for test 1 Time (seconds)

2. ## To investigate the effect of varying the masses of white sugar and yeast and ...

The 2,000mg of yeast was then added quantitatively to this mixture and the volume made up to 100ml with glass distilled water. The mixture was left to stand for exactly for 5 minutes and the bubbles observed indicated ongoing fermentation.

1. ## Find out the effect of concentration of acid, in thereaction between dilute hydrochloric caid ...

3 moles.Throughout the experiment, we diluted the acid solution using water, as we did this the concentration of the acid decreased. We put the acid(3 moles) into the 10ml testube and then poured the solution into the beaker with the magnesium ribbon init(2cm long)

2. ## To investigate the effect of varying concentration on the reaction between Magnesium ribbons and ...

An equation for the reaction: Magnesium + hydrochloric acid >magnesium chloride + hydrogen Mg+ 2HCL>Mgcl2 + H2 1mole 2moles 1moler 1moler Aim The aim of this investigation is to find out the effect of concentration of acid, in the reaction between dilute hydrochloric acid and magnesium ribbon.

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