4 Fe + 3 O2 → 2 Fe2O3
How many moles of Fe are needed to react with 1.00 moles of O2?
A FULL STEP EXPLANATION WILL BE APPRECIATED

We need 1.33 moles of Fe

Explanation:

Step 1: Data given

Number of moles O2 = 1.00 moles

Step 2: The balanced equation

4 Fe + 3 O2 → 2 Fe2O3

For 4 moles Fe we need 3 moles O2 to produce 2 moles Fe2O3

Step 3: Calculate moles Fe

For 4 moles Fe we need 3 moles O2 to produce 2 moles Fe2O3

For 1.00 moles O2 we need 4/3 * 1.00 = 1.33 moles Fe

There will be produced 0.67 moles Fe2O3

We need 1.33 moles of Fe

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.