Vitamin K has a molar mass of 173 g/mole and is 76.3% carbon by mass. How many carbo [Archive]

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asheppard13

Mar 26, 2012, 04:47 PM

Vitamin K has a molar mass of 173 g/mole and is 76.3% carbon by mass. How many carbon atoms are in one molecule of vitamin K?

ebaines

Mar 27, 2012, 08:27 AM

173 g/mole x 0.763 gives the grams of carbon per mole of Vitamin K. Divide that by the atomic weight of C to determine how many C atoms per molecule of Vitamin K.