The molar mass of sodium hydroxide (NaOH) is approximately 40.00 g/mol. This value is calculated by summing the atomic masses of each element in the compound.
To break it down:
- Sodium (Na): The atomic mass of sodium is about 22.99 g/mol.
- Oxygen (O): The atomic mass of oxygen is approximately 16.00 g/mol.
- Hydrogen (H): The atomic mass of hydrogen is around 1.01 g/mol.
By adding these together:
Na: 22.99 g/mol + O: 16.00 g/mol + H: 1.01 g/mol = 40.00 g/mol
Thus, the molar mass of sodium hydroxide is 40.00 g/mol, which is important for calculations in chemistry, such as determining the amount of NaOH needed for reactions or solutions.