Brain Teasers
Nano-Laboratory
Time has passed, and new technologies have been developed. The job of our nano-laboratory is developing new products of "nano" accuracy. For example, if we develop telescopes, we do not allow an error of even a nanometer in the lenses, because this will result in great error when put to use.
The first project of our laboratory is producing nano-purified water, i.e. no ion is allowed to have a concentration of more than 1 nanomole per liter.
No matter how hard we tried, we failed. Why?
The first project of our laboratory is producing nano-purified water, i.e. no ion is allowed to have a concentration of more than 1 nanomole per liter.
No matter how hard we tried, we failed. Why?
Hint
Read carefully.Answer
Water is a weak electrolyte. In water at room temperature, the concentration of hydrogen ion and hydroxide ion each equal 10^(-7) mole per liter, which is 100 times 1 nanomole per liter.Hide Hint Show Hint Hide Answer Show Answer
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