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Investigate the rate of reaction with magnesium and different concentrations of hydrochloric acid - Plan

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Introduction

I am going to investigate the rate of reaction with magnesium and different concentrations of hydrochloric acid. In order to carry out the experiment, I will need the correct apparatus which are: * Goggles * Stop clock * Beaker * 30 cm3 measuring cylinder * 5x70mm magnesium ribbons * 1, 1.5, 2, 2.5, 3 mol./dm3 hydrochloric acid * Gas syringe Next, the apparatus has to be set out, which should look like this: Key Factors: The magnesium has to be sanded to remove any oxide on the ribbon. ...read more.

Middle

The hydrochloric acid must be measured preciously because the tests won't be reliable. Next, the hydrochloric acid is poured into the beaker. Once the hydrochloric acid is in the beaker, one person checks the time (every 10 sec.) and the volume of hydrogen produced. The other person puts the magnesium ribbon (which is folded into eight sections to provide a large surface area) into the hydrochloric acid. To ensure no hydrogen escapes, the person must check whether there are any leaks around the top of the beaker, which leads to reliable results. ...read more.

Conclusion

Fair Test: Variable Constant Concentration of hydrochloric acid Volume of acid (30 cm3) Length of magnesium ribbon (70mm) Type of acid Surface area of magnesium ribbon (folded eight times) Temperature of environment Prediction: I predict the more amount of concentration, the faster the reaction and the more amount of hydrogen produced. I think the reaction is going to be faster and more hydrogen will be produced because the particles are crowded and will collide with each other more often, resulting in an increased number of successful collisions per second. ?? ?? ?? ?? Investigation Planning ...read more.

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