Find the atomic mass of Fe (ON) 2 Ba (NO3) 2.
| December 6, 2020 | education
Ar- atomic mass, constant value, taken from the periodic table of chem. elements.
To find the Ar of a substance, it is necessary to add up the atomic masses of the elements that make up the substance.
Ar (Fe (NO) 2) = Ar (Fe) + (Ar (N) + Ar (O)) * 2
Ar (Fe (NO) 2) = 56+ (14 + 16) * 2 = 116
Ar (Ba (NO3) 2) = Ar (Ba) + (Ar (N) + Ar (O) * 3) * 2
Ar (Ba (NO3) 2) = 137 + (14 + 16 * 3) * 2 = 261
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
