What is the molar mass of KClO3?

The molar mass of potassium chlorate (KClO₃) is calculated by summing the atomic masses of all the atoms in a molecule of KClO₃.

First, we find the atomic masses of each element:

• Potassium (K): Approximately 39.10 g/mol
• Chlorine (Cl): Approximately 35.45 g/mol
• Oxygen (O): Approximately 16.00 g/mol (and there are three oxygen atoms)

Now, we calculate the molar mass:

• K: 1 x 39.10 g/mol = 39.10 g/mol
• Cl: 1 x 35.45 g/mol = 35.45 g/mol
• O: 3 x 16.00 g/mol = 48.00 g/mol

Adding these together gives:

39.10 g/mol + 35.45 g/mol + 48.00 g/mol = 122.55 g/mol

Thus, the molar mass of KClO₃ is 122.55 g/mol.