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OpenStudy (anonymous):
What is the mass of 5.25 mols of boron trifluoride?
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OpenStudy (anonymous):
356 grams
OpenStudy (anonymous):
Could you explain to me how you did that, please?
OpenStudy (anonymous):
mass/molecular weight of BF3 = moles mass/67.805=5.25 mass=356grams mw of BF3= mw of B + mw of 3(F) = 10.811 + 3(18.988) =10.811+56.94 = 67.85
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