What type of intermolecular forces exists between the following?
HCl and H2O ii F2 molecule iii Br— and H2O iv CO2 and ammonia
Answers
Answer:
hcl and h2o is rhe intermolecular forces exists
Answer:
Give a reason for the fact that water, the hydride of oxygen, is a liquid at room temperature while the hydride of sulfur (the next member of Group 16) is a gas?
3
(1.) Hydrogen fluoride is a liquid at 15 C and a weak acid but hydrogen chloride is a gas and a strong acid. Explain these facts.
(2.) For similar reasons water and ammonia have unexpected properties. What are they?
4
Explain, using diagrams and a brief statement, how hydrogen bonding produces each of the following results:
(1.) Ammonia gas is readily liquefied despite its low density.
(2.) Acetic (ethanoic) acid is strongly associated in the liquid state.
(3.) The boiling point of ethanol is much higher than that of dimethyl ether of identical molecular weight.
5
List an example of each of the following types of species:
(1.) a molecule containing no polar bonds.
(2.) a non-polar molecule containing polar bonds.
(3.) a polar molecule.
(4.) a molecule subject to hydrogen bonding.
(5.) a compound containing the H- ion.
6
Explain the following observations:
(1.) The boiling point of CCl4 (350 K) is greater than the boiling point of CH4 (111 K).
(2.) the boiling point of ammonia (NH3, 240 K) is greater than the boiling point of phosphine (PH3, 185 K).
7
List the following substances in order of increasing normal boiling point:
HBr, HCl, HF, HI.
8
List by formula the following substances in order of increasing boiling point:
methoxymethane (dimethyl ether), CH3-O-CH3
1,2-ethanediol, OH-CH2-CH2-OH
ethanol, CH3-CH2-OH
ethane, CH3-CH3.