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How to work out the volume occupied by the gaseous products?

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moon_bear:
Hi there =]

Was just wondering if anyone could help me with this question, my brain is a bit mushy as have been at this for well over a few hours....
I'm not too sure how to go about it....do i find out the RAM of each of the gases and then using the Avogadro hypothesis, work it out from that ?
As in doing that the answer will need more than 3 significant figures....so i must be doing something wrong !!

Any help with this would be super massively appreciated !! =D
Thanks peeps

moonbearx

C3H5 (NO3)3 (l) + 3H2O (l) decomposes rapidly to produce nitrogen, carbon dioxide, water vapour, oxygen and heat energy according to Reaction 2, with an energy change known as the enthalpy of decomposition. The temperature of this reaction can exceed 5000 °C.

Reaction 2;
4C3H5(NO3)3 (l) = 12CO2 (g) + 10H2O(g) + 6N2 (g) + O2 (g) + heat

Calculate the volume occupied by the gaseous products from the complete decomposition of 4 moles of C3H5 (NO3)3 (l) + 3H2O (l), as shown in Reaction 2, when cooled to 25 °C and at atmospheric pressure. Express your answer to three significant figures, and explain your reasoning.

Wunderkind:
Who are you, again?

Banshee:
Well, you may be surprised to learn that the people that hang out here on a semi-regular basis don't actually have nothing better to do than answer any random question that any equally random person wants to drop in and ask us.

Much like anyone else, should anyone actually know the answer to whateverthefuckyoujustposted, people are much more inclined to help other people that they actually know. Or at least have been introduced to.

This is a much longer way of saying what Wunderkind just said. Go introduce yourself, but there's no guarantees anyone will want to help you, or even be able to answer your question at all.

MISTER MASSACRE:
How did those poor moles die? :(

ivan:
I like the Avocado hypothesis with just a little salt and pepper.

Ok, a lot of salt and pepper.

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