questions. Prepare a data table and record your observations as you work through the procedure. (4 marks) Analysis 1. Use the mass of magnesium, the temperature, and atmospheric pressure to predict the volume of hydrogen of gas that will be produced by the reaction. (5 marks)
2. 3. Use the measured and predicted volumes of hydrogen to calculate a percent yield and a percent error/difference for the experiment. Comment on the relationship between the values obtained for the percent yield and percent error/difference you calculated for this experiment. (3 marks) Determine whether the predictions made using the stoichiometric method are supported by the data collected from this experiment. (1 mark)
Producing Hydrogen Step 1 T 2 3 4 5 000 6 7 8 2 IMALIS 9 10 0.09 Home Wamings Materials Procedure 11 12 Procedure Step 1 Measure and record the mass of the strip of magnesium
Producing Hydrogen Step 1 23 4 5 6 7 8 9 10 11 12 Step 2 Fold the magnesium ribbon to make a small compact bundle that can be held by a copper cage. Slame Homine Materiale Procedure Bunradu
Producing Hydrogen Step 12 4 5 6 7 8 9 10 11 12 Procedure Step 3 Wrap the fine copper wire all around the magnesium, making a cage to hold it, but leaving 30 mm to 50 mm at each end of the wire free for a handle.
Producing Hydrogen Step 1 2 3 ROVER 250 ml 5 6 0- 50 100 150 7 8 9 10 11 30 20 10 12 Procedur Step 4 Carefully pour 10 mL to 15 mL of the hydrochloric acid into the graduated cylinder.
Producing Hydrogen Step 1 2 3 4 6 7 8 9 10 11 12 Procedure Step 5 Slowly fill the graduated cylinder to the brim with water from a beaker. As you fill the cylinder, pour slowly down the side of the cylinder to minimize mixing of the water with the acid at the bottom. In this way, the liquid at the top of the cylinder is relatively pure water and the acid remains at the bottom.
Producing Hydrogen Step 1 2 3 4 5 7 8 9 10 11 12 Procedure Step 6 Half-fill the large beaker with water.
Producing Hydrogen Step 1 2 3 4 5 6 8 9 10 C 11 12 Procedure Step 7 Bend the copper wire handle through the holes in the stopper so that the cage holding the magnesium is positioned about 10 mm below the bottom of the stopper.
Producing Hydrogen Step 1 2 3 4 5 6 1 3 7 9 10 11 12 2 Procedure Step 8 Insert the stopper into the graduated cylinder; the liquid in the cylinder will overflow a little. Cover the holes in the stopper with your finger. Working quickly, invert the cylinder, and immediately lower it into the large beaker so that the stopper is below the surface of the water before you remove your finger from the stopper holes.
Producing Hydrogen Step 1 2 3 4 5 6 101 00 00 00 00 500 400 06 DOL Y14 O 7 Home Warnings Materials 8 10 11 12 Procedure 106 2 Proced Step 9 Observe the reaction, then wait about 5 minutes after the bubbling stops to allow the contents of the graduated cylinder to reach room temperature
ducing Hydrogen 2 3 4 5 6 7 09 08 06 OOL ome Warnings Materials 8 9 27 Procedure 11 12 Procedure Step 10 Raise or lower the graduated cylinder so that the level of liquid inside the beaker is the same as the level of liquid inside the graduated cylinder. (This equalizes the gas pressure in the cylinder with the pressure of the air in the room.) Use this image to measure and record the volume of gas in the graduated cylinder.
Producing Hydrogen Step 1 2 3 4 5 6 7 8 Tunto 30 20 9 10 1112 Procedur Step 11 Record the laboratory (ambient) temperature and pressure. The atmospheric pressure on the day the experiment was performed was 101.62 kPa.
Producing Hydrogen Step 1 2 3 4 5 6 7 8 9 10 11 12 Procedure Step 12 The liquids in this investigation may be poured down the sink, but rinse the sink with lots of water.
Topic 6: Lesson 3 Assignment Lesson 3: Gas Stoichiometry **YOU DID THIS LAB IN TOPIC 6 LESSON 3, PLEASE PULL YOUR DATA AND RESPONSES AND INPUT THEM HERE*** Lab: Producing Hydrogen - View a virtual presentation of this investigation, Producing Hydrogen, complete the lab and then answer the following Topic 6: Lesson 3 Assignment Lesson 3: Gas Stoichiometry **YOU DID THIS LAB IN TOPIC 6 LESSON 3, PLEASE PULL YOUR DATA A
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