unknown compound

Started by KLynn712, October 09, 2011, 11:06:40 PM

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KLynn712

October 09, 2011, 11:06:40 PM
If 1.00 g of an unknown molecular compound contains 8.35x10^21 molecules, what is its molar mass?

uma

#1
October 10, 2011, 12:13:17 AM
1 mole has 6.022X10^23 molecules
and 1 mole = molar mass of the compound
mass of 1 mole =6.022X10^23 molecules X 1g / 8.35x10^21 molecules
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