Does the following chemical formula represents polar molecules that would be soluble in H20 @ 4 degrees celsius?

Question

Answer I think... C2H5OH (ethyalchol)

Answer 1

Yes; ethyl alcohol is soluble in water. The structure (if I can replicate it here) is:

 

     H    H
      |    |

H - C - C - OH
      |    |
     H    H

 

The OH (hydroxyl group) makes the molecule polar, since oxygen is highly electronegative and the sharing of electrons is therefore unequal. Polar substances dissolve in water because the partial charges interact with the partial charges of water molecules (partially negative oxygen atoms and partially positive hydrogens).

 

Hope that helps! Knowing your functional groups and being able to draw Lewis structures will definitely help.

Answer 2

Yes, ethanol has a hydroxy group (OH), which is polar and can hydrogen bond, meaning it is soluble in water.