The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory.
initial mass and yield
sulfuric acid initial amount 35g theoretical yield of water from reactant 12.85
aluminum hydroxide initial 30g theoretical yield of water from reactant 31.77
what is the approximate amount of the leftover reactant?
8.2 g of sulfuric acid
9.8 g of sulfuric acid
11.43 g of aluminum hydroxide
13.76 g of aluminum hydroxide

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.