Molar density of fecal matter

Need help with Chem question on homework. How do I answer this?

 

What information do you have? You need to know the molar mass of the particular fecal matter you're dealing with, then the mass of fecal matter in and total volume of your sample.

 

I would answer "who gives a (*)(*)(*)(*)?".

Feces is made up of 75% water, and 25% organic matter. We could estimate that 75% is H2O and 25% is carbon. http://www.healthhype.com/feces-faeces-formation-composition-color-and-odor.html

Water is about 18g per mole. Carbon is about 12g per mole. .75 x 18g + .25 x 12 g would be 16.5g per mole.


Now, you're sure they didn't ask the molar mass of POOP? POOP is 2 phosphorus atoms attached to two oxygen atoms (usually written p2o2), and that's around 94g per mole.

 

If you have fecal matter on your molars, brush fer chrissakes....NOW

And then gargle with hydrogen peroxide.....

 

Impossible to answer without more information. The problem is that fecal matter is heterogeneous.