Reacting Gas Volumes Investigation
4D: Process information from secondary sources to investigate the relationship between the volumes of gases involved in reactions involving a metal and relate this to an understanding of the mole.
METALS
Reacting Gas Volumes
AIM: to investigate the relationship between the volumes of gases involved in a reaction.
HYPOTHESIS: A new gas will form when two gases will react together.
BACKGROUND INFORMATION:
Nitric oxide and oxygen are both colourless gases which do not dissolve in water. However, when they mix they form a different gas called nitrogen dioxide which is brown, soluble in water and has a particular odour. This is an example of two gases reacting together to produce a complete new gas.
In this experiment you will …show more content…
Fill both measuring cylinders completely with water. Carefully invert them over the trough so that the open end of each is at least 1cm below the surface of the water, and then clamp them in this position.
2. Place the pipe from the oxygen cylinder below the water surface, turn on the tap and bubble oxygen into the small cylinder until it contains about 5mLs of gas. Measure and record the volume of gas present.
3. Place the test tube of nitric oxide below the water surface. Using a submerged funnel, bubble the nitric oxide into the large measuring cylinder. Measure and record this volume.
4. Very carefully transfer the oxygen into the large measuring cylinder without allowing any to escape into the atmosphere. (This is best done by tilting the large measuring cylinder and sliding the funnel and small funnel beneath it).
5. Observe any evidence of reaction and movement of water level in the large cylinder. When all changes appear to have ceased measure and record the volume of gas remaining in the large cylinder.
6. Invert the small cylinder, add oxygen and again transfer this to the large cylinder. Measure and record all
METALS
Reacting Gas Volumes
AIM: to investigate the relationship between the volumes of gases involved in a reaction.
HYPOTHESIS: A new gas will form when two gases will react together.
BACKGROUND INFORMATION:
Nitric oxide and oxygen are both colourless gases which do not dissolve in water. However, when they mix they form a different gas called nitrogen dioxide which is brown, soluble in water and has a particular odour. This is an example of two gases reacting together to produce a complete new gas.
In this experiment you will …show more content…
Fill both measuring cylinders completely with water. Carefully invert them over the trough so that the open end of each is at least 1cm below the surface of the water, and then clamp them in this position.
2. Place the pipe from the oxygen cylinder below the water surface, turn on the tap and bubble oxygen into the small cylinder until it contains about 5mLs of gas. Measure and record the volume of gas present.
3. Place the test tube of nitric oxide below the water surface. Using a submerged funnel, bubble the nitric oxide into the large measuring cylinder. Measure and record this volume.
4. Very carefully transfer the oxygen into the large measuring cylinder without allowing any to escape into the atmosphere. (This is best done by tilting the large measuring cylinder and sliding the funnel and small funnel beneath it).
5. Observe any evidence of reaction and movement of water level in the large cylinder. When all changes appear to have ceased measure and record the volume of gas remaining in the large cylinder.
6. Invert the small cylinder, add oxygen and again transfer this to the large cylinder. Measure and record all