Answers To 2022-2023 Chem328 Review HW For Polarity, IMF And Physical Properties Including Solutions, Molarity

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Here is the answers to 2022-2023 Chem328 Review HW for Polarity, IMF and Physical Properties including Solutions, Molarity.

1a) Ionic
1b) Polar
1c) Non-polar
1d) Polar
1e) Ionic
1f) Polar

2) Using Molecular Polarity table:

CCl₄, ΔEN =0.5, 4 non-polar bonds, Tetrahedral (sym), NA, non-polar molecule, LDF
BeCl₂, ΔEN =1.5, 2 polar bonds, Linear (sym), Yes, non-polar molecule, LDF
CS₂, ΔEN=0.0, 2 non-polar bonds, Linear (sym), non-polar molecule, LDF
NF₃, ΔEN=1.0, 3 polar bonds, Pyramidal (not sym), polar molecule, dipole-dipole

3) Made mistake, no question/problem

4)+-->, Arrow over the more electronegative atom (or whatever way you memorize the symbol).

5) Ionic ΔEN> or = 1.8
polar bond is 1.8<ΔEN> or >0.4
non-polar ΔEN<=0.8

8) Assume polar prove non-polar