what is formula mass? calculate formula mass of NacL
Answers
Answer:
58.44 g/mol
The formula of Sodium chloride is NaCl . The atomic mass of sodium is 22.99gmol , and the atomic mass of chlorine is 35.45gmol . Thus, the formula mass of Sodium chloride is 22.99+35.45=58.44gmol .
Answer:
The molecular mass (m) is the mass of a given molecule: it is measured in Daltons (Da or u). Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element. The related quantity relative molecular mass, as defined by IUPAC, is the ratio of the mass of a molecule to the unified atomic mass unit (also known as the Dalton) and is unitless. The molecular mass and relative molecular mass are distinct from but related to the molar mass. The molar mass is defined as the mass of a given substance divided by the amount of a substance and is expressed in g/mol. The molar mass is usually the more appropriate figure when dealing with macroscopic (weigh-able) quantities of a substance.
The formula of Sodium chloride is NaCl. The atomic mass of sodium is 22.99 g mol, and the atomic mass of chlorine is 35.45 g mol. Thus, the formula mass of Sodium chloride is 22.99 +35.45 = 58.44 g mol.