Science Buddies: "Ask an Expert"

I'm trying to calculate the amount of a chemical, that if turned into vapor, would be sufficient to hit 100% Lower Explosive Limit (LEL), assuming no ventilation.

So, for example, if I was using Ether the LEL is 1.9%. If I was using 100ml of Ether in a room with a volume of 500m3 how would I calculate the %LEL for that volume? and also detemine what amount could be used before reaching the LEL.

I have been trying to find the answer everywhere and while I can find formulas to calculate the LEL of a mixure I can find an example of the more practical calculation of its concentration

Cheers
K

Hi pirri,

Is your question related to a science fair project? This forum is intended for students, parents, and teachers working on K-12 science projects. If you are looking for help with homework or general science discussions there are other sites that should be able to answer you question.

A. Norman

I am a teacher asking a question about a class room situation. I was unaware that your site only helps people doing sciecne fairs. The front page is titled

Hands-on Science Resources for Home and School

Maybe making it clear that this web site is only interested in science fair would help everyone out.