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How Concentration And Temperature Affects The Rate Of Reaction

804 words - 3 pages

How Concentration and Temperature Affects the Rate of Reaction between Magnesium Ribbon and Hydrochloric Acid.

WHAT I AM INVESTIGATING

I am going to investigate how concentration and temperature affects
the rate of reaction between magnesium ribbon and hydrochloric acid.

MY PREDICTION

The thing which I expect to happen is the more acid added to water the
faster the reaction will happen. Also the hotter the solution the
quicker the reaction will happen.

THEORY TO BACK UP PREDICTION

This will happen because when the temperature increases it will give
the particles energy which will make the particles move quicker
causing more particles to “collide” this will make the reaction
quicker.

I predict that these factors might have an effect on the results

1. Temperature- how hot or cold

2. Concentration- how much acid, how little

3. surface area- how big or small

4. Time- how fast, how slow

5. Catalyst- will speed up the reaction but won’t get used up.

6. mass of magnesium- how much magnesium

The idea that I am going to investigate is how the increase of
temperature will affect the speed of reaction.

Planning

The equipment I will need is:

· Goggles for eye protection

· Beaker to put acid and water in

· Stop clock for measuring the time

· Magnesium strips to put in the solution the magnesium strip will
be 3cm

· Acid to mix with the water

· Water to mix with the acid

· Measuring cylinder to make the experiment accurate

VARIABLES

When I do my experiment I will change the concentration of the acid
but when the acid and water are mixed together I will always keep the
concentration 50ml3

I will keep magnesium strips the same size which is 3cm long. Also I
will keep the amount of concentration the same. The measuring cylinder
will only hold 10ml of liquid therefore I will have to measure 5 lots
of liquid each time.

The equipment that I will use to keep my experiment accurate is a
cylinder to measure the water in, and the same for acid. I will also
use a stop watch to keep the time accurate. Also to make sure that the
experiment is a fair test and to make it more accurate I will do the
experiment three times.

I will keep these things the same because I want the experiment to be
a fait test. (Keeping the amount of concentration the same, the length
of the magnesium...

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