
here's the question that got me cranky. -.-
10 cm^3 of a gaseous hydrocarbon was completely burnt in 40 cm^3 of oxygen. After cooling to room temperature the residual gas was passed through aqueous KOH. The volume of gas decreased to 15 cm^3. What is the molecular formula of the hydrocarbon.
=) simple rite. -.- i din know how to do...
wrong..
i STILL dunno how to do..
LOL!! little help pls? =D
i'm running from reality
and into my own world