Mole Concept Qualifier Page 4

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16._________________________

What is the mass, in grams, of a single molecule of propane gas, C

17._________________

How many moles of sulfate ions are there in 625 grams of manganese (VI) sulfate

heptahydrate? (molecular mass is 469.2 g/mole)

18._________________ What is the mass of 537 milliliters of xenon tetrafluoride gas at STP conditions?

19._________________ A 28.6-liter sample of triphosphorus decoxide contains how many grams of

phosphorus?

20.______________________ How many atoms are present in 8.0 moles of ammonium acetate trihydrate?

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