01 Jul THE REACTION OF MAGNESIUM AND DILUTE HYDROCHLORIC ACID
THE REACTION OF MAGNESIUM AND DILUTE HYDROCHLORIC ACID
THE REACTION OF MAGNESIUM AND DILUTE HYDROCHLORIC ACID
1. The ratio of product (hydrogen gas) to reactant (magnesium) is determined by the equation:
Ratio (L/g) = ( Initial mL of acid Final mL of acid ) / ( 1000 ml/L )
Mass of magnesium (g)
Calculate the ratio for using the following data:
Initial mL of acid = 200 mL
Final mL of acid = 94 mL
Mass of magnesium = 0.1067 g
2. Describe the procedure for the experiment. This could be in an outline format or a flow chart format or paragraph format. It should not be copied directly from the manual. (This should be between ½ and one page, you may use the back of the page)
3. Briefly discuss all safety precautions related to this experiment. (chemical and equipment related). See additional information regarding chemical handling and waste treatment on next page.
CH 110
THE REACTION BETWEEN
MAGNESIUM AND DILUTE HYDROCHLORIC ACID
Chemical Handling and Waste Treatment
Normal laboratory safety practices must be followed at all times. MSDS sheets are available in the laboratory.
All waste solids (i.e. unused pieces of magnesium ribbon or powder) should be put in the designated container by the balance.
All solutions should be disposed of down the drain with lots of cold tap water.
Magnesium metal is not toxic and, while it is quite flammable, the high temperature required to ignite it will not be used in this lab.
The hydrogen gas generated by the reaction can be highly explosive! No flames or sparks should be used in the lab.
The hydrochloric acid solutions used, while not toxic, should be handled carefully. If skin is exposed to any of the solutions, the exposed area should be promptly flushed with cold tap water. In case any acid gets into the eyes, flush the eyes at the eye-wash fountain immediately and call the instructor. Of course, the latter accident will not occur when your safety goggles are in place.
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