Homework Help: chemistry

Posted by lawrencly on Wednesday, July 4, 2012 at 4:04pm.

a sample mixture of ch4 and c2h6 weighing 0.732 g burned to give 2.064 g co2. What is the mass of ch4 in the mixture?

chemistry - DrBob222, Wednesday, July 4, 2012 at 7:58pm
Don't get sloppy in chemistry with no caps.
Let x = mass CH4
and y = mass C2H6 and set up two equations and solve simultaneously.
-----------------------------------
x+y=0.732
(x*44/16) + (2y*44/30) = 2.065
Post your work if you get stuck.

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