dissolved oxygen tests

Main source of oxygen are the plants which evolve oxygen as a by-product of photosynthesis. It is used chiefly by most of the living organisms in their aerobic respiration except certain anaerobics. Oxygen acts as a limiting factor in the distribution of animals in aq..

When salt is added to boiling water the temperature of boiling water is raised above 100 o C. This is because the salt absorbs heat energy from the water for dissolving in it and its average kinetic energy decreases. When gases dissolve in water it lowers the boiling ..

Oxygen is another essential element for living organisms. It is present in large quantities (20.95% v/v) in the atmosphere and is also seen in bound state in water and as oxides and carbonates in rocks. Dissolved oxygen in water is the source of oxygen for aq..

Metals in Acids ..

Oxygen - 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 consti..

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 8..

The energy requirements of metabolic processes are met with to a larger degree by aerobic respiration. Thus the quantity of oxygen available to plants governs their growth ra..

Lithium tarnishes slowly in moist air while dry air has no effect. When heated in air or oxygen at about 200C, it burns with a brilliant white light forming lithium monoxide. ..

Take distilled water in a trough. Boiled and cooled water can also be taken since it does not contain dissolved air. Invert a gas jar filled with oxygen, over it, as shown in the figure (Fig.13.9). After some time, the level of the water rises inside the gas jar indicating that..

Physical Properties of Oxygen - Color-odor-Taste Oxygen is colorless, odorless and a tasteless gas. Density It is slightly denser than air. Vapor Density of oxygen = 16 (Vapor density of air = 14.4) Experiment to show that oxygen is denser than air Take two g..