Molar weight of nitrogen

As we described in Section 4.

Nitrogen is a chemical element ; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table , often called the pnictogens. It is a common element in the universe , estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure , two atoms of the element bond to form N 2 , a colorless and odorless diatomic gas. Because of the volatility of nitrogen compounds, nitrogen is relatively rare in the solid parts of the Earth. It was first discovered and isolated by Scottish physician Daniel Rutherford in and independently by Carl Wilhelm Scheele and Henry Cavendish at about the same time. Elemental nitrogen is usually produced from air by pressure swing adsorption technology.

Molar weight of nitrogen

The molecular weight of a substance, also called the molar mass , M, is the mass of 1 mole of that substance, given in M gram. Molecular weight is represented by the same number in all unit systems regardless of the system used. For this reason, in many cases the unit for the molecular weight is not mentioned; however, one must realize that it is not a dimensionless parameter. The molecular weight of a pure compound is determined from its chemical formula and the atomic weights of its elements. Example: The molecular weight of ethanol C 2 H 5 OH To calculate the molecular weight of ethanol, the molecular weight of each atom in the molecule is summed:. See also Physical data for hydrocarbons , Physical data for alcohols and carboxylic acids , Physical data for organic nitrogen compounds and Physical data for organic sulfur compounds. Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro. Translate this page to Your Own Language. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. Temperature o C K o F. Length m km in ft yards miles naut miles.

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The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage. Go To: Top , References , Notes. Data compilation copyright by the U. Secretary of Commerce on behalf of the U. All rights reserved. Acree, Jr. In addition to the Thermodynamics Research Center TRC data available from this site, much more physical and chemical property data is available from the following TRC products:. Go To: Top , Phase change data , Notes.

Molar weight of nitrogen

In chemistry, the formula weight is a quantity computed by multiplying the atomic weight in atomic mass units of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom or group of atoms in the formula by the formula weight and multiplying by When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.

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They have a metallic lustre and conduct electricity as do metals. Biological Anthropology of the Human Skeleton 2nd ed. Journal of Chemical Education. For example, the atomic mass of an oxygen atom is As a cryogenic liquid, liquid nitrogen can be dangerous by causing cold burns on contact, although the Leidenfrost effect provides protection for very short exposure about one second. It is used in the cryopreservation of biological materials such as blood and reproductive cells sperm and eggs. Like dry ice , the main use of liquid nitrogen is for cooling to low temperatures. ISBN These white crystalline salts are very sensitive to water vapour and carbon dioxide in the air: [68]. In the event of a nitrogen leak, and a decrease in oxygen to a pre-set alarm level, an oxygen deficiency monitor can be programmed to set off audible and visual alarms, thereby providing notification of the possible impending danger. Nitrosyl fluoride NOF is colourless and a vigorous fluorinating agent.

Allotropes Some elements exist in several different structural forms, called allotropes. Each allotrope has different physical properties.

American Chemical Society. Vapour pressure P Pa 1 10 1 k 10 k k at T K Make Shortcut to Home Screen? Accessed June 23, It forms a significant dynamic surface coverage on Pluto [49] and outer moons of the Solar System such as Triton. Protein NMR Spectroscopy. Edinburgh, Scotland: William Creech, , pp. If you stacked up 6. For a long time, sources of nitrogen compounds were limited. This is not possible for its vertical neighbours; thus, the nitrogen oxides , nitrites , nitrates , nitro- , nitroso -, azo -, and diazo -compounds, azides , cyanates , thiocyanates , and imino -derivatives find no echo with phosphorus, arsenic, antimony, or bismuth. Very pure nitrogen can be prepared by the thermal decomposition of barium azide or sodium azide. Translate this page to Your Own Language. Encyclopedia of Genetics, Genomics, Proteomics and Informatics. Retrieved 27 January ISSN