October 6, 2015

Homework Help: chemisty

Posted by Carry on Thursday, March 1, 2007 at 6:31pm.

Many home barbecues are fueled with propane gas (C3H8). How much carbon dioxide in kilograms is produced upon the complete combustion of 18.9 L of propane (approximate contents of one 5-gal tank)? Assume that the density of the liquid propane in the tank is 0.621g/mL.

I have no idea how to do this and I'm really stressing out on it. I'm thinking about leaving it blank. But I know I have to try.
Help me if you can, thanks!

First, you need to write a balanced equation for the combustion of C3H8. Then, you know how many liters, and you know the density, so you can calculate how many moles of C3H8 you have. Then, you can get the moles of CO2...
I hope this gets you started. Let me know if you're still stuck!!

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