Homework Help: chemistry

Posted by joyce on Thursday, February 18, 2010 at 12:21am.

i have to do a "chemistry of cooking" project for my chem class. for the project i need to convert pounds, grams, and ounces into moles, but i do not know how. for example, i need to convert 453.5g of beef into mols. how do i do that? do i need to know the chemical formula of the beef?

chemistry - DrBob222, Thursday, February 18, 2010 at 12:32am
Either the formula or the molar mass of the principal material. moles = grams/molar mass.
chemistry-DrBob222 - joyce, Thursday, February 18, 2010 at 12:45am
but i do not know the molar mass.
chemistry - DrBob222, Thursday, February 18, 2010 at 12:52am
Nor do I. You might look up the molar mass of DNA or protein and fat and take some estimate from that. I don't know. Perhaps another tutor has a suggestion.

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