The atomic mass and molecular weight of a molecule made of two atoms of hydrogen (H) and one atom of nitrogen (N) can be calculated as follows:
Atomic mass of hydrogen (H) = 1.00784 atomic mass units (amu) Atomic mass of nitrogen (N) = 14.00674 amu
To calculate the atomic mass of the molecule, we sum up the atomic masses of the constituent atoms:
Atomic mass of molecule = (2 * atomic mass of hydrogen) + atomic mass of nitrogen = (2 * 1.00784 amu) + 14.00674 amu = 2.01568 amu + 14.00674 amu = 16.02216 amu
So, the atomic mass of the molecule composed of two hydrogen atoms and one nitrogen atom is approximately 16.02216 atomic mass units.
To calculate the molecular weight, we convert the atomic mass to grams using the conversion factor:
1 amu = 1.66054 x 10^(-24) grams
Molecular weight = (atomic mass of molecule) * (1.66054 x 10^(-24) grams/1 amu) = 16.02216 amu * (1.66054 x 10^(-24) grams/1 amu) = 2.66 x 10^(-23) grams
So, the molecular weight of the molecule composed of two hydrogen atoms and one nitrogen atom is approximately 2.66 x 10^(-23) grams.