What is the method for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?

1) Clamp your gas syringe to your clamp standing using your clamp and boss. 2) Measure 50ml if 1 mol/dm³ and pour it into the conical flask. 3) Add in a magnesium ribbon and start the timer, measuring how much gas is produced every 30 seconds for 5 minutes. 4) Repeat the experiment with 50ml of 0.5 mol/dm³ hydrochloric acid instead and compare the results.