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Find out if heating the hydrochloric acid affects the rate of reaction between magnesium and hydrochloric acid.

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Introduction

Sam hall Chem. course work Apparatus: Magnesium strips (5cm) Hydrochloric acid Water bath Clamp x 3 Clamp stand x3 Ruler Measuring cylinder (100ml) Measuring beaker (50ml) x2 Rubber tube Rubber bung Gas syringe Wire wool Stop clock Aim: My aim is to find out if heating the hydrochloric acid affects the rate of magnesium and hydrochloric acid. Prediction: I predict that the heating the hydrochloric acid will effect it as heating is one type of changing the rate of reaction. Method: Get three clamps and clamp stands from the cupboard, and set them up and get a water bath and set it up to the right temperature (20-80) and then let it get to the right temp get a gas syringe form the tray and set the up to one of the stands and then measure out 30ml of hydrochloric acid and pour that in to the 50ml measuring beaker and then place that in to the water bath, repeat that with the other measuring beaker. ...read more.

Middle

Visible changes can occur in the reaction mixture. These show that a reaction has taken place, for example a gad is given off or a solid is made or the colour changes. Oxidation this happens with most substances usually forming an oxide e.g. magnesium if not kept in a solution then it will react with oxygen forming magnesium oxide. Exothermic (give out heat) the reaction supplies the energy as heat. The heat energy is given to the surroundings; the temperature might go up making it feel hot. Temperature by changing the temperature in a experiment you are effecting the rate of reaction by heating it you are making the experiment go faster because you are making the particles react faster giving a higher chance of a collision happing and if you drop you are causing the particles to move slower so their isn't as high risk of a collision happing. ...read more.

Conclusion

When putting the Magnesium strip into the beaker of acid, gas can escape before the bung is on, so you could tie the magnesium on to a string and place the bung on so the string is held in place and then shake it so the strip will fall out in to the magnesium. Also you can change the amount of acid being put in as the more acid you put in the more likely there is going to be a collision to make a reaction. And buy making the pieces of magnesium smaller and putting in smaller pieces there is more surface area so their will be more reactions happing. Evaluation: Over all I think that the experiment wasn't fair as their was many different ways that the experiment didn't work and the results were different due to the problems their was, e.g. gas escaping. ...read more.

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