What is the mass of 3.45 moles of Be3N2?​

189.75g

Explanation:

mass is equal to mole*molar mass and the molar Mass of KNO3 is 55 so 3.45*55 is equal to 189.75

answer: i dont know the answer but this might

explanation:

l

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.