Recent content by Pen Rie

For those of you who know what a Hansen Solubility Parameter is, does the "hydrogen-bonding" part means the actual hydrogen bond energy between molecules? I'm confused as to why they used mPa^0.5 instead of kJ/mol^-1 for measurement.

Sorry for my mistake, I was actually trying to find if an acidic solution when mixed with water would strengthen its hydrogen bonds.

More acidity means more electronegativity, and more electronegativity means more dipole moments. I observed that liquids with low dipole moments (bases) often have lower density and surface tension, but not necessarily hydrogen bonds. To contradict it, acetic acid have a low surface tension but...

it seems like acidic solutions strengthen hydrogen bonds while basic solutions weaken hydrogen bonds. for example, ammonia, a basic solution, has a very weak hydrogen bond while hydrogen fluoride, an acid, has a very strong bond. is this what you mean about lewis acids and bases?

Thank you for replying on my posts. I was trying to find out how to change the strength of hydrogen bonds in water for my lab report, and since you mentioned surface tensions of aqueous solutions, I researched which solutions could change surface tension. Based from a quick search, there were a...

If you increase the surface tension of a liquid, does it change the average bond strength of the liquid?

In regards to the surface tension, do you suggest that I find an aqueous solution with weak and strong surface tension and mix it with water to strenghthen or weaken it?

How do you strengthen and weaken hydrogen bonds in water aside from changing its temperature? Could you add any solutes to do so?