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"Education is the most powerful weapon which you can use to change the world”
– Nelson Mandela

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Quiz 36

Quiz 36

Q Question 1 1 / 1 pts What is the dominant intermolecular force experienced by hydrogen iodide? Question 2 1 / 1 pts What is the dominant intermolecular force experienced by ammonia, NH3? Question 3 1 / 1 pts What is the dominant intermolecular force experienced by silane, SiH4? Question 4 1 / 1 pts What is the dominant intermolecular force experienced by hydrogen fluoride? Question 5 0.5 / 1 pts Methane (CH4) reacts with chlorine gas to form several different compounds: Methyl chloride (CH3Cl) Methylene chloride (CH2Cl2) Chloroform (CHCl3) Carbon tetrachloride (CCl4) Which of these compounds has the HIGHEST vapor pressure and why?

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A high vapor pressure implies a low boiling point, thus weak intermolecular forces. All 4 compounds contain the same type of intermolecular forces, but their molar masses are different. Methyl chloride has the lowest molar mass, thus it will have the highest vapor pressure. The strength of the intermolecular forces decreases as the molar mass decreases. All four do not experience the same IMF.