chemistry question #2449



Payal, a 12 year old female from Buffalo asks on December 20, 2004,

Q:

How do you determine the proportion of the various gases in the air?

viewed 14804 times

the answer

Barry Shell answered on December 20, 2004, A:

Chemistry professor Carmen Giunta at LeMoine College in Syracuse, NY has posted the 1802 paper in which John Dalton explains how he did it.

Basically, within closed systems, he tried different chemical reactions each designed to selectively use up a suspected component of air, and then he noted how much the total air pressure changed. That way he could tell the relative proportion of each major component.

Add to or comment on this answer using the form below.
(required)
(required if you would like a response)
Note: All submissions are moderated prior to posting.
If you found this answer useful, please consider making a small donation to science.ca.