molecular weightthe weight of a molecule of a chemical compound as compared with the weight of an atom of carbon-12; it is equal to the sum of the weights of its constituent atoms and is dimensionless. Abbreviated Mol wt or MW. Although widely used, the term is not technically correct; ...
On the basis of the above results, it is concluded that PSt radicals formed by the thermal dissociation of the C ON bond between PSt and TEMPO are trapped by polycondensed aromatic rings of carbon black. The mole number of grafted PSt chains on the carbon black surface decreased with ...
Molecular Weight of Substances Definition and molecular weight (molar mass) of some common substances. 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. In the SI system the unit of M is (kg/kmol) and ...
- Molecular mass (molecular weight): The mass of one molecule of a substance, expressed in unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12) - Molar mass (molar weight): The mass of one mole of a substance, expressed in grams per mole (...
1.3.1.1.2 The concept of equivalent weight The equivalent weight (EW) is the weight of polymer per mole of active sites (SO3−). It corresponds to the inverse of the ion exchange capacity (IEC) which represents the amount of sulfonate groups introduced per gram of polymer in a fuel cel...
A hydrocarbon contains10.5gof carbon per gram of hydrogen.1Lof vapour of the hydrocarbon at127∘Cand 1 atm pressure weighs2.8g. Find the molecular formula of the hydrocarbon. View Solution Free Ncert Solutions English Medium NCERT Solutions ...
The atomic weight of every constituent atom of the molecule is added to get the total weight of the solute’s molecule. When this molecular weight is expressed in grams, it represents one mole of that particular substance. This is what you have learned in your previous classes. ...
(Show more) Related Topics: molecule mole See all related content molecular weight, mass of a molecule of a substance, based on 12 as the atomic weight of carbon-12. It is calculated in practice by summing the atomic weights of the atoms making up the substance’s molecular formula. The...
mole See all related content molecular weight,massof amoleculeof a substance, based on 12 as the atomic weight ofcarbon-12. It is calculated in practice by summing theatomic weightsof the atoms making up the substance’s molecular formula. The units of molecular weight areatomic mass units(am...
It is defined to be 1/12 of the mass of one atom of carbon-12 and in older works is also abbreviated as "amu". Also, important in this field is Avogadro's number (NA) or Avogadro's constant (6.0221 x 1023). The term "mole" is defined in that one mole of a substance with ...