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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Bazinga11 on October 23, 2013, 05:27:14 PM

Title: A Molecule With a Similar Molar Mass as CCl4?
Post by: Bazinga11 on October 23, 2013, 05:27:14 PM

I need to find a molecule that has a similar mass as CCl4 but it can't be another non-polar molecule. PCl3 was the closest I could get it but had a lower melting and boiling point. I need to prove that a polar molecule with a similar molar mass will have a higher melting and boiling point.

Thank you

Title: Re: A Molecule With a Similar Molar Mass as CCl4?
Post by: magician4 on October 23, 2013, 07:47:32 PM

what kind of proof is this, when by looking up the properties of PCl₃ you already did fasificate the original assumption ?

yes, your might find molecules of MW very near to CCl₄ , like for example n-undecane (which is more polar than CCl₄, though not very polar yet in a general, absolute sense), that would support your claim. However, there also are those that contradict your claim, and that was that: your claim is meaningless in a general sense, as it's being falsified by reality.

"polarity" is not the only game in town...


regards

Ingo

Title: Re: A Molecule With a Similar Molar Mass as CCl4?
Post by: Vidya on October 25, 2013, 09:32:45 PM

try POCl3  :)