||[Feb. 26th, 2010|04:55 pm]
I clearly remember the border moment between high school and university. It was a question my teacher asked during a chemistry class. The problem went like this:|
Take 1 liter of 1M solution of NaOH, mix with 1 liter of 0.5M solution of NaOH. What's the concentration of the resultant solution?
Despite the obvious arithmetics, the correct answer was - heck if I know, volumes don't necessarily add up. Especially true for strong solutions of strong electrolytes, of which NaOH is one.
In the K-12-equivalent school system as I knew it, a problem where "no idea" is the correct answer would be inconceivable. The difference is that between a high school science class and real science.
Although technically, I was in high school when this happened. The teacher, however, was a university professor.