Rate of reaction between magnesum and hydrochloric acid

An Investigation into what effects the rate of reaction between magnesium and hydrochloric acid.

Aim:

My aim is to do an investigation into how the concentration of acid affects the rate of reaction with magnesium. I must consider;
„h How much magnesium to use
„h What concentration of magnesium to use
„h Must react within a reasonable time

Prediction:

In solutions of higher concentration particles arse closer together. Which means they have a greater chance of colliding. Because there are more collisions per second, the reaction rate if faster, making the time of reaction shorter. Therefore, because of this, I predict the higher the concentration, the quicker the reaction.

Preliminary Investigation:

Diagram:







Method:
„h Set out the equipment as shown above.
„h Cut magnesium into 3 pieces of 2, 3 and 4cm
„h Pour 30cm3 of 2 molar hydrochloric acid into a beaker.
„h Pour 10cm3 into each test tube and put each of your different length...