A substance has a density of 0.83 g/mL. Which of the following is true? - The substance will SINK because it's density is GREATER than water
- The substance will SINK because it's density is SMALLER than water
- The substance will FLOAT because it's density is SMALLER than water
- The substance will FLOAT because it's density is GREATER than water

Option (c) is correct.

Explanation:

The density of a substance is 0.83 g/mL.

We know that the density of water is 1 g/mL

It means the density of the substance is less that that of density of water. If the density of substance is less that water then it will float on water's surface.

Hence, the correct option is (c) "The substance will FLOAT because it's density is SMALLER than water".

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.

the ratio of the conjugate base to the acid required to attain the desired ph.