What is H2C2O4’s molar mass?

To find the molar mass of H₂C₂O₄, also known as oxalic acid, we need to add together the molar masses of all the atoms in the formula.

• Hydrogen (H): The molar mass is approximately 1.01 g/mol. Since there are 2 hydrogen atoms, we have: 2 × 1.01 g/mol = 2.02 g/mol.
• Carbon (C): The molar mass is approximately 12.01 g/mol. Since there are 2 carbon atoms, we have: 2 × 12.01 g/mol = 24.02 g/mol.
• Oxygen (O): The molar mass is approximately 16.00 g/mol. Since there are 4 oxygen atoms, we have: 4 × 16.00 g/mol = 64.00 g/mol.

Now, we add all these contributions together:

2.02 g/mol (H) + 24.02 g/mol (C) + 64.00 g/mol (O) = 90.04 g/mol

Therefore, the molar mass of H₂C₂O₄ is 90.04 g/mol.