Water (3)

Yesterday was World Water Day 2011 and the theme for this year is ‘Water for Cities’. The theme for this weeks blogs posts will therefore be all about water. You may also remember that yesterday I posted a question asking: 'What causes water to have a much higher boiling point than expected?' And the answer ...... Well, it is the hydrogen bond - the same intermolecular bond that holds your DNA together. How does this (relatively) strong bond come to exist? What causes it? Where ...

The advantages of impurities

  Us Chemists are a strange bunch. We like things pure. Purity is good. If something is pure we know what we have. We like this! On the other-hand, we like impurities. It is why we put salt in our water when we boil potatoes. The salt is an impurity and it increases the boiling point of water. The water can reach a higher temperature before boiling and our potatoes cook faster. This article will focus on beryllium oxide being used as an ...