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Ashja
 3 years ago
Help please?
Ashja
 3 years ago
Help please?

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Luis_Rivera
 3 years ago
Best ResponseYou've already chosen the best response.0these questions requiere in depth explanatins. that is why i use online tutoring fo this. if you're interested , see my profile for details. ill be glad to offer services.

aaronq
 3 years ago
Best ResponseYou've already chosen the best response.2theres 2 things you need to know for this problem the stoichiometric ratio given by the balanced equation and the ideal gas law PV=nRT There's several ways to approach the problem: I would suggest you find the number of moles 12.5L of water are using the ideal gas law: PV=nRT then once you know that use the stoichiometric ratio  aA + bB > cC lower case are coefficients and upper case are the species so a ratio would be set up like this: \[\frac{ moles of A }{ a}=\frac{ moles ofC }{ c }\] you can then plug things in and solve for your unknown  once you find the number of moles of methane you need, simply convert to mass (in g). moles=mass/molarmass
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