4. 2CH3OH + 302 --> 2002 + 4H20
When 6.40 g of CH3OH were mixed with 10.2 g of O2, 6.12 g of CO2 were made.
a. Calculate the theoretical yield of CO2-
b. Determine the percent yield of CO2.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

yes the answer is total mass in unchanged   : )