All Questions
3 questions
4
votes
3
answers
964
views
What are dipole moments in a molecule supposed to act upon?
In a $\ce{CO_2}$ molecule, a total of four electron pairs are shared between the carbon and oxygen atoms, such that 2 pairs are shared between the carbon atom and each oxygen atom. Oxygen has a ...
- 312
7
votes
4
answers
40k
views
Why is tetrafluoromethane non-polar and fluoroform polar?
Consider the Lewis dot structures of the molecules fluoroform, $\ce{CHF3}$, and tetrafluoromethane, $\ce{CF4}$:
My first line of thought is that both of these molecules are symmetrical (the ...
- 469
4
votes
0
answers
4k
views
How to explain the periodic trends in boiling points in groups?
Observing the trend of boiling points of the compounds listed, choose the appropriate terms to fit into the blanks:
\begin{array}{lr}
\hline
\text{Compound} & \text{b.p.}/\pu{°C}\\
\hline
\ce{H2Te}...
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