Can oxygen be collected by the downward displacement of water?

Answer 1

Hydrogen can be collected by the downward displacement of water because of two reasons: it is less dense than water, and so rises to the surface, and it is not very soluble in water, and so nearly all the gas can be collected because very little is dissolved in the water.

Answer 2

Oxygen is carried by downward displacement of water because in the experiment of preparing oxygen from hydrogen peroxide using manganese dioxide as a catalyst, when the gas jar is filled, it is covered with a greased glass lid beneath the level of water in the trough and removed.

Answer 3

Hydrogen and air are both gases at standard temperature and pressure, and one gas can not displace another in the same space, irrespective of their relative densities: All gases mix with one another, since part of the definition of a gas is that its kinetic units (molecules or atoms) move freely throughout all the space inside whatever walls, impermeable to gas, by which the gases are confined. Therefore, attempting to displace air with hydrogen would create a mixture of hydrogen and air. In addition to the futility of trying to collect pure hydrogen this way, there would be substantial danger of creating a combustible mixture of hydrogen and air that could explode.

Answer 4

No, oxygen is less dense than water and is not water soluble, so it cannot be collected by the downward displacement of water. Oxygen is typically collected by other methods such as the electrolysis of water or by heating certain compounds that release oxygen gas.

Answer 5

The simplest method of producing both Hydrogen and Oxygen gas is by the electrolysis of water.

Answer 6

Yes , because it is slightly soluble in water

Answer 7

Hydrogen is a light insoluble gas so bubbles up nicely without any being "lost" in solution.

Answer 8

hydrogen has low solubility in water