The boiling point of a substance is the temperature at which the vapor pressure of the liquid equals the environmental pressure surrounding the liquid
0
votes
0answers
29 views
How to calculate molarity,molality, vapor pressure, freezing point, boiling point? [closed]
A solution is prepared in a cold room(4.0 C) by dissolving 118g of potassium nitrate(KNO3) in 750 mL of water. The resulting solution had a volume 745 mL.
Calculate the molarity of the resulting ...
4
votes
1answer
52 views
Calculate Ethanol content after heating for N minutes
Does there exist a formula I can use to calculate alcohol content of a solution after heating it for some time?
I have the following use-case:
I am making a pecan pie. I have a thick sugary solution. ...
-1
votes
1answer
49 views
Boiling point and solubility
Which one of the following compounds has the highest solubility :
$$\ce{CH3CH3 \ \ \ \ \ \ \ \ \ CH3-O-CH3 \ \ \ \ \ \ \ \ \ CH3CHO \ \ \ \ \ \ \ \ \ CH3OH}$$
Which one of the following compounds ...
2
votes
1answer
50 views
Boiling and Melting point of Lithium (or any other element that does not occure in free state)
The melting and boiling point of Lithium as compared to other members of the Alkali group metals is high. But, Lithium does not occur in the free state.
So, what does it mean that it has high ...
1
vote
1answer
119 views
Why does the boiling and freezing-point of non-polar molecules rise with increasing molecular mass?
In the section about fuels, my textbook mentions that the boiling and freezing-points of alkanes (which are non-polar) increase with an increase in molecular mass due to London dispersion forces.
...
7
votes
3answers
154 views
Will gaseous ionic compounds be free moving ions?
I knew while learning about electrolysis that if the ionic compound is molten it becomes free moving ions.
If that is the case, what will happen if I continued heating till it reaches the boiling ...
3
votes
2answers
247 views
Boiling point of vodka
What is the boiling point of vodka?
I have found the boiling point of ethanol, ~173 (degrees) F.
However, I am unable to find the boiling point of vodka. I found some information on it, but I do not ...
6
votes
1answer
2k views
Why do different substances have different boiling points?
For example, why does for example oxygen turn into gas at a much lower temperature than water?
Does it have anything to do with the molecular structure? A water molecule does have a more complex ...