preparation of oxygen gas

has no definite volume or shape is fluid is very compressible. It takes the volume and shape of the vessel in which it is kept. For example: Hydrogen and carbon dioxide All the three states of matter are inter-convertible. For example: water When water is cooled to 0 o C, it tr..

Oxygen is very essential for the existence of human life on Earth. It is the most abundant element on the surface of the Earth. In a free state, it is present in the Earth's atmosphere to an extent of about 21% by volume, (23.15% by mass) In the combined form, it constitutes about 88% by ..

Natural Gas - It is a mixture of gaseous hydro-carbons. It is found usually along with petroleum deposits. Natural gas consists mainly of 85% methane, 10% of ethane and 3% of propane and butane. It may also contain nitrogen, oxygen, carbon di-oxide and hydrogen sulphid..

The Gas Equation - According to Boyle's Law, the volume of a gas varies inversely as the pressure, temperature remaining constant, i.e., According to Charles' law, the volume of a gas varies directly as the absolute temperature, pressure remaining constant, i.e. Both, ..

Metals such as silver, gold and platinum adsorb oxygen gas at 500 o C. Molten silver absorbs ten times its mass of oxygen and expels it rapidly on cooling. This phenomenon is called the spitting of silve..

1. Oxygen is a colorless, odorless and tasteless gas. 2. It is neutral to litmus. 3. It rekindles a glowing splinter. 4. When mixed with colorless nitric oxide, it forms reddish brown fumes of nitrogen dioxide. 5. It is absorbed by alkaline pyrogallol solution that tur..

An oxygen atom has six electrons in its valence shell. As a result, it requires 2 more electrons to achieve the nearest noble gas configuration. When two oxygen atoms share two pairs of electrons this is achieved: ..

Each oxygen atom has six electrons in its valence shell. Thus, it requires 2 more electrons to achieve the nearest noble gas configuration. This is achieved by sharing two pairs of electrons by the two oxygen atoms as shown below: ..

Any of the above mentioned methods could be used to prepare oxygen in the laboratory. Mercuric and silver oxides are not used for the preparation of oxygen, as they are very expensive. For the laboratory preparation of oxygen from any of t..

Preparation of Oxygen - From Nitrates - Metallic nitrates, when heated, give out oxygen. At the same time, most of them also give out a reddish brown gas - nitrogen dioxide, NO 2 . Thus, these nitrates cannot be used to prepare oxygen..