The rate may be measured in several different ways. For example, it may be expressed as the volume of H 2 gas produced per second or as the mass of magnesium metal used per second. You will then identify two factors other than catalysis to alter the speed of this reaction and examine each factor quantitatively. Wear protective glasses and an apron at all times. Avoid skin contact with solids and solutions.
Hydrochloric acid is a very corrosive reagent.
Wash any spills copiously with water. No Bunsen burners should used during this activity due to the production of potentially explosive hydrogen gas. Wash your hands before leaving the laboratory. Go to Top Procedure 1. During the first laboratory period, your group of four students will investigate the Mg - HCl reaction.