forces

  1. U

    Van der Waal Forces

    This is a bit urgent because i have a test tomorrow and have compleatly forgotten everything about Van der Waals. I’d like to know how you would tell if something is held together by van der waal forces, for example CO2? Basically any information that would make my understanding of Van der Waals...
  2. H

    Intermolecular forces in BF3

    Hi! Boron trifluoride is a nonpolar molecule due to its high symmetry even though the covalent bonds within the molecule are polar. As a result, the only type of intermolecular forces in BF3 would be the London dispersion forces. I understand that these forces are exhibited by nonpolar...
  3. B

    A quickie... predicting intermolecular forces

    Which one is more soluble in CF4? O2 or N2? Using geometry and intermolecular forces rules... My guess... "CF4 is a tetrahedrical, nonpolar compound, so he has only "london dispersion forces" N2 is nonpolar, only with london and so O2. So the thing to compare is Molecular mass, Mr(N2)=28...
  4. K

    Intermolecular forces and penicillin help??

    Hi all I am stuck on the following question the question regards a penicillin G R-grop (a benzyl group C6H5CH2) and the amino acids Leucine HO2CCH(NH2)CH2CH(CH3)2 and Serine HO2CCH(NH2)CH2OH . what type of intermolecular attraction that you would expect the ‐R group of penicillin‐G to form to...
  5. S

    intermolecular forces and melting point relationships?

    This is the question: Arrange the following in order from highest to lowest melting points. Explain your arrangement based on structure and bonding principles. N2, SiO2, Cl2, H2O, NaF, KCl. based on values I found elsewhere the order should be SiO2, NaF,KCl, Cl2, N2, H20 However I am not...