As part of a writing project I am in need of your superior minds.
Imagine a sealed six by nine room.
Roughly what quantity of the following would you need in order to fill it with a lethal quantity of either:
1) Carbon Monoxide (from Calcium Carbonate + Zinc, lethal at ~1600ppm) OR
2) Hydrogen Chloride (from Sulfuric Acid + Sodium Chloride, lethal at ~1-2000ppm)?
Approximations, wild guesses and '
http://lmgtfy.com/?q=lethal+concentration+MO+HCl' more than welcome, but this is a serious and hypothetical enquiry.
Thanks very much for any assistance.