Homework Problem #57

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NinaSheridan
Posts: 30
Joined: Wed Sep 21, 2016 2:58 pm

Homework Problem #57

Postby NinaSheridan » Sat Nov 26, 2016 2:20 pm

So on 11.57 the answer key says the initial concentration for H2 is 3 moles per liter, but the problem itself says it's 3 moles for 10 L, which would make the concentration .3 instead of 3, wouldn't it? It does the same thing for CO, it says 2 moles are put into a 10L vessel, which would make the concentration .2M, so why does it say the concentrations are 3 for H2 and 2 for CO?

NinaSheridan
Posts: 30
Joined: Wed Sep 21, 2016 2:58 pm

Re: Homework Problem #57

Postby NinaSheridan » Sat Nov 26, 2016 2:29 pm

Jk, just answered my own question, but if anyone else has this problem, here's what's going on. The answer key is using a different method that uses the reaction stoichiometry rather than the concentrations, but the concentration method works too, so it's just a different method.


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