The chemical formula for diethyl sulfoxide is:

(Ch3ch2)_2SO
Calculate the molar mass of diethyl sulfoxide

To calculate the molar mass of diethyl sulfoxide, we need to add up the atomic masses of each element in the formula.

Diethyl sulfoxide has the following elements and their respective atomic masses:
- Carbon (C): 12.01 g/mol
- Hydrogen (H): 1.01 g/mol
- Sulfur (S): 32.07 g/mol
- Oxygen (O): 16.00 g/mol

Molar mass of diethyl sulfoxide:
(2 x 12.01) + (6 x 1.01) + 32.07 + 16.00 = 72.22 g/mol

Therefore, the molar mass of diethyl sulfoxide is 72.22 g/mol.