Respuesta :
% of H in NH3= 17% and % of O in NO2 = 69%
Calculation of percentage of hydrogen and oxygen
- The molecular weight of NH3 is
= 14 + (3 x 1)
= 17
% of H in NH3 = 3/17 x 100
= 17%
- The molecular weight of NO2 is
= 14 + (16 x 2)
= 14 +32 = 46
% of O in NO2 = 32/46x 100
= 69%
Molecular mass
The mass of a given molecule is its molecular mass (m), which is expressed in daltons (Da or u). Because they contain various isotopes of an element, multiple molecules of the same substance can have distinct molecular weights. According to IUPAC, the related quantity relative to molecular mass is a unitless comparison between the mass of a molecule and the unified atomic mass unit (also called the dalton). The molar mass is unrelated to, but distinct from, the molecular mass and relative molecular mass. The molar mass, which is stated in g/mol, is defined as the mass of a specific material divided by the amount of a substance
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