The relative atomic masses of sodium (Na), magnesium (Mg), chlorine (Cl), and hydrogen chloride (HCl) are as follows:
- Sodium (Na): The relative atomic mass of sodium is approximately 22.99 g/mol.
- Magnesium (Mg): The relative atomic mass of magnesium is approximately 24.31 g/mol.
- Chlorine (Cl): The relative atomic mass of chlorine is approximately 35.45 g/mol.
- Hydrogen Chloride (HCl): Hydrogen chloride is a compound composed of one hydrogen atom (H) and one chlorine atom (Cl). To determine the relative atomic mass of HCl, we add the relative atomic masses of hydrogen and chlorine together.
The relative atomic mass of hydrogen (H) is approximately 1.008 g/mol, and the relative atomic mass of chlorine (Cl) is approximately 35.45 g/mol. Adding them together, we get:
Relative atomic mass of HCl = Relative atomic mass of H + Relative atomic mass of Cl = 1.008 g/mol + 35.45 g/mol = 36.458 g/mol (rounded to three decimal places)
Therefore, the relative atomic mass of one mole of hydrogen chloride (HCl) is approximately 36.458 g/mol.