Ethylene glycol, c2h6o2, a nonelectrolyte, is added to the water in a radiator to give a solution containing 0.75 mole of ethylene glycol in 1 kg of water (solvent). what is the boiling point of the solution?

Answer : The boiling point of the solution is

Explanation :

Formula used for Elevation in boiling point :

or,

where,

= boiling point of solution = ?

= boiling point of water =

= boiling point constant  of water =

m = molality

i = Van't Hoff factor = 1 (for non-electrolyte)

= moles of solute (ethylene glycol) = 0.75 mole

= mass of solvent (water) = 1 kg

Now put all the given values in the above formula, we get:

Therefore, the boiling point of the solution is

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.