A certain nano-laboratory is developing new products of "nano" accuracy. For example, if they develop telescopes, they do not permit an error of even a nanometer in the lenses, because this will result in great error when put to use.

The first project of this laboratory is producing nano-purified water - that is, no ion is allowed to have a concentration of more than 1 nanomole per liter.

No matter how hard they tried, their endeavours always resulted in failure.

Why?

Pure water has a pH of 7.  This means that H+  ions exist in equilibrium at 10^(-7) mols/liter, which is equal to 100 nanomol/liter.

Posted by Kenny M on 2022-09-12 15:54:43