I was teaching a grade eleven chemistry class. The class was just before lunch. We were using 2 mol/L of sodium hydroxide. A female student spilt the dilute sodium hydroxide on her dark brown corduroy pants but it was difficult to see how much without a very close inspection. She patted her dark pants with plenty of wet paper towels. I asked her if she had removed all the sodium hydroxide. She said she had. I did not check the pants carefully as it was in a very sensitive area.
Learning by Accident – ‘NaOH Spill’
Categories: General Interest