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In which of the following does hydrogen bonding occur when in the pure liquid state? CH3-O-CH3 HCl CH3CH2SH CH3CH2OH Which of the following aqueous solutions has the highest boiling point and lowest freezing point? 1.0 m NaCl 1.0 m MgCl2 1.0 m C12H22O11 1.0 m NaNO3 Which should have the greater vapor pressure at a given temperature, CH3CH2OH or CH3CH2SH, and why? Which of the following gases has the greatest average molecular velocity at the same temperature? N2 F2 H2 CO2 Please explain how to get the answers.. I don't understand how to approach them.

In which of the following does hydrogen bonding occur when in the pure liquid state?

CH3-O-CH3
HCl
CH3CH2SH
 CH3CH2OH



Which of the following aqueous solutions has the highest boiling point and lowest freezing point? 
1.0 m NaCl
1.0 m MgCl2
1.0 m C12H22O11
1.0 m NaNO3


Which should have the greater vapor pressure at a given temperature, CH3CH2OH or CH3CH2SH, and why?



Which of the following gases has the greatest average molecular velocity at the same temperature?
N2F2 H2CO2
Please explain how to get the answers.. I don’t understand how to approach them. 
 
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