Increased viscosity combined with hydrogen bonding results in a slower-than-expected evaporation time. In addition, the same variance was observed for acetonitrile between the predicted and ...

How could you design a quick and easy evaporation test to compare the rate of evaporation ... Remind students that the oxygen-hydrogen (O–H) bonds in water make it a polar molecule. This polarity ...

For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. For the first time, scientists have succeeded in ...

Thus, molecules that are able to form lots of hydrogen bonds among themselves are much harder to turn into a gas and have a higher heat of evaporation. This also affects the boiling temperature of ...

Hydrogen bonds are at the very core of life as we know it, and now for the first time ever scientists have managed to visualize these transient molecular associations. A team of researchers from ...

At the same time, hydrogen bonds are some of the weakest molecular bonds known to occur between atoms. As such, these bonds are difficult to observe, much less study. As scientists endeavor to ...

WITHOUT them, life as we know it could not exist, yet the exact definition of the hydrogen bond – credited with keeping water liquid and giving DNA its signature helical shape – has always ...

Chemistry students the world over are familiar with covalent bonds and hydrogen bonds. Now a study has revealed a strange variety of bond that acts like a hybrid of the two. Its properties raise ...

Humid air causes hydrogen bonds to form between the proteins in your hair, triggering curls and frizz. Image via Flickr user Simon Gotz If you have long hair, you probably don’t need to look up ...