Topic: Definition of Molecular Weight
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What is the Molecular Weight of Air?
The molecular weight of dry air is 28.966. Dry air is composed of Oxygen, nitrogen, carbon dioxide, hydrogen, argon, neon, helium, krypton and xenon. You can find more information here: http://www.engineeringtoolbox.com/molecu... Read More »
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What is Molecular Weight?
Molecular weight, also called molecular mass, is the sum of the weight of all the atoms in a molecule. It is the weight of a single molecule of a substance. Read More »
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What is the Molecular Weight of Ethanol?
The molecular weight of the straight-chain alcohol, ethanol, is 46.0684 grams per mole. Ethanol's boiling point is 78 degrees, and it's density is .79 grams per cubic centimeter. You can find more information here: http://www.a-m.de/englisc... Read More »
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Definition of Molecular Weight
(n.) The average weight of a molecule of an element or compound measured in units once based on the weight of one hydrogen atom taken as the standard or on 1/16 the weight of an oxygen atom, but after 1961 based on 1/12
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To calculate the mass of a molecule you find the mass of each element in the compound and add them all together. Each element's atomic mass can be found on the periodic table.
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The molecular weight of glucose is 180 grams per mole. Glucose has the molecular formula C6H12O6 and is the most important simple sugar for metabolism.
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Water is composed of 2 hydrogen atoms and one oxygen atom. The atomic mass of hydrogen is 1.00794 grams and the atomic mass of oxygen is 15.9994 grams. Add 2 hydrogens and 1 oxygen together to determine that the molecular weight of water is...
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molecular weight: (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule
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The English language is known for having words that have more than one meaning making it a very difficult language to learn. The definition of weight just happens to be one of those words and the best place to find out the meaning you are l...
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The molecular weight of a compound is the sum of the average atomic weights of the elements that exist in that compound. The average atomic weight is the average of all of the isotopes of that element. Chemical compounds have certain number...
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