Producing Hydrogen Gas
Materials:
· THIS LAB IS TO BE DONE IN A VENTILATED AREA.
· Safety Gloves
· Safety Goggles
· Diluted Hydrochloric Acid
· Magnesium
· A pipette
· Beaker
· Sink available with running water
Procedure: THIS LAB IS TO BE DONE IN A VENTILATED AREA.
1. Put on goggles and gloves
2. Using the pipette put 100 ml of hydrochloric acid into beaker
3. Weigh magnesium scraps to weigh .1 grams
4. Put .1g of magnesium into beaker and observe changes inside the beaker
5. After reaction was observed, pour hydrochloric acid and magnesium out of the beaker into the sink with running water (be sure to keep water running as the substance is being poured out)
Reaction & Calculations:
· Magnesium + Hydrochloric Acid→ Hydrogen + Magnesium Chloride
· Mg (s) + 2HCl (aq) = H2 (g) + MgCl2 (aq)
Materials:
· THIS LAB IS TO BE DONE IN A VENTILATED AREA.
· Safety Gloves
· Safety Goggles
· Diluted Hydrochloric Acid
· Magnesium
· A pipette
· Beaker
· Sink available with running water
Procedure: THIS LAB IS TO BE DONE IN A VENTILATED AREA.
1. Put on goggles and gloves
2. Using the pipette put 100 ml of hydrochloric acid into beaker
3. Weigh magnesium scraps to weigh .1 grams
4. Put .1g of magnesium into beaker and observe changes inside the beaker
5. After reaction was observed, pour hydrochloric acid and magnesium out of the beaker into the sink with running water (be sure to keep water running as the substance is being poured out)
Reaction & Calculations:
· Magnesium + Hydrochloric Acid→ Hydrogen + Magnesium Chloride
· Mg (s) + 2HCl (aq) = H2 (g) + MgCl2 (aq)
Mass calculations from Magnesium to Hydrogen
Measurements and Observations
Observations: Bubbles were produced immediately after the magnesium was dropped into the beaker with the Hydrochloric acid. The bottom of the beaker got warm and hydrogen gas was produced by the reaction of both chemicals.
Hydrochloric acid was poured into a beaker and magnesium metal was dropped into it. The combination of hydrochloric acid and magnesium reacted with each other to produce gas bubbles releasing hydrogen gas. They also reacted with each other by producing heat. The way i know these two chemicals reacted is because bubbles or gas, and a temperature change are both indicators that a chemical reaction has occurred. After the reaction occurred, the substance was poured out and the beaker was cleaned. Magnesium reacted with hydrochloric acid, because it is higher in the reactivity series than hydrogen. When the two chemicals react a displacement reaction takes place and the magnesium displaces the hydrogen in the hydrochloric acid. In result forming magnesium chloride and hydrogen gas. A source of error was that the amount of magnesium metal exposed to the hydrochloric acid was not the same all around in the beaker. The temperature of the hydrochloric acid is a source of error because the reaction could have reacted slower or faster in different temperatures.