Which of the following substances has London force as its only intermolecular fo

Question

Which of the following substances has London force as its only intermolecular force? CH_3 OH Ne CuCl_2 Which of the following molecules has the highest boiling point? H_2 Br_2 N_2 How can Oxygen (O_2) can dissolve in water even though it is a non-polar molecule? Given 700 mL of water at 100 degree C, How much energy is needed to evaporate the water? Delta H_vap for water at 100 degree C = 40.7 kJ; Density of water at 100 degree C = 0.958 g/l Which pair(s) match? Molecule N-H or F-H -Hydrogen bonding Polar molecule-Dispersion Force Lone pairs of electrons-dipole-dipole force strongest intermolecular force-lon-dipole force Which of the following molecules would show dipole-dipole forces? Cl_2 NH_3 BCl_3 Predict the order from lowest to highest boiling point and explain why. (SiH_4, SnH_4, GeH_4, CH_4) How many grams of oxygen (O2) can be dissolved in 750mL of water at 20 degrees Celsius if the oxygen pressure is 2 atm and Henry's Law constant (k) for oxygen at 20 degrees Celsius is 1.38 Times 10^(-3) M/atm.

Explanation / Answer

1) c) the polarity of bond
2) Br2 . It is liquid at 25°C, all except Br2 are gases
3. Because its paramagnetic.

4. Q=0.7 L(0.958 g/L)(40.7 kJ/mol)(1 mol/18g)=1.51 kJ
5. A
7. In order
SbH4>GeH4>SiH4>CH4
Size of the atom, bigger=high boiling point

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