There are 2 answers: 1) Identify the inter molecular force in this molecule: with explanation CI CITC CI CI 2) Is this molecule Polar or Non-Polar? Dipole-Dipole

Which of these pairs of substances are likely to be miscible? a) Br2 and carbon tetrachloride, CCl4 b) Diethyl ether CH3CH2OCH2CH3 and acetic acid, CH3COOH c) Cyclohexane, C6H12 and hexane, C6H14 d) Heptane, C7H16 and water

(a) Which dipole pair shown below has the lower energy? (b) If you double the distance between the dipole centers, by what factor does pair interaction change? Does it increase or decrease? (a) Parallel (b) Antiparallel Dipoles separated by a distance r, (a) parallel, and (b) antiparallel.

Which intermolecular force correlates with dipole moment?

Ethylene glycol, HOCH2CH2OH, may look nonpolar when drawn, but an internal hydrogen bond results in an electric dipole moment, Explain.

Carbon tetrafluoride (CF4) is a non-polar molecule with polar bonds. O True False

For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. name acetic acid dimethyl ether compound hypobromous acid formula or Lewis structure H :0: H-C-C-O-H H H H-C-0-C H H H T HBrO | H Between molecules of the compound? yes O O no O yes no yes hydrogen-bonding force no Between molecules of the compound and molecules of water? O O yes no yes no yes no X

Which of the following liquids is held together by hydrogen bonding? i) methano      l ii) petrol   iii) glycerol       iv) ethanal (acetaldehyde) Using your knowledge of Lewis structures, deduce the structure of the cation PF4+.   What is its true shape and F-P-F bond angle?

Draw the molecule Dimethyl ether and show where LDF is in and where the dipole dipole moment occurs.

Rubbing alcohol is the common name for 2-propanol (iso- propanol), C3H7OH. (a) Draw the three-dimensional structure of the 2-propanol molecule and predict the geometry around each carbon atom. (b) Is the 2-propanol molecule polar or nonpolar? (c) What kinds of intermolecular attractive forces exist between the 2-propanol molecules? (d) The isomer 1-propanol has the same molecular weight as 2-propanol, yet 2-propanol boils at 82.6 °C and 1-propanol boils at 97.2 °C. Explain the difference.