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Elin Hessel
Elin HesselLv2
21 Apr 2020

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Related questions

think about intermolecular forces and the stronger the intermolecular force the more energy needed to separate the molecules. just thinking about this, put the properties below in the correct category.
Strong intermolecular forces/ weak intermolecular force
A) high vapor pressure
B) high boiling point
C) high viscosity
d) high surface tension

1.

a) Which one of the following is expected to have the highest vapor pressure at room temperature? ( Ethanol bp = 78 degrees Celsius, Methanol bp =65 degrees Celsius, Diethyl ether bp = 35 degrees Celsius, Acetone bp = 56 degrees Celsius )

b) Which of the following species are NOT capable of hydrogen bonding as pure substances? ( C3H8, CH3COOH, CH3CH2OH, HCI )

c) True or False: Liquids that have strong intermolecular forces generally have higher viscosities than those that have weak intermolecular forces.

d) Graphite crystallizes as what type of crystal? ( Ionic, Covalent, Molecular, Metallic )

e) Which one of the following substances crystallizes as a molecular crystal? ( NaCI, Na, SiO2, CO2 )

f) Which one of the following statements is NOT true in regards to water? ( Water has a high heat capacity, Water has an unusually high boiling point for such a small molecule, Water can form hydrogen bonds, Ice is more dense than liquid water, Water is a polar molecule )

g) List the type(s) of intermolecular forces that exist in each of the following substances:

CH3CI

H2O

KCI

CH4

At 1 atm, how much energy is required to heat 93.0 g of H2O(s) at –14.0 °C to H2O(g) at 141.0 °C? Helpful constants can be found here.

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