What Is The Mass Of 4.91\Xd71021 Platinum Atoms?
What is the mass of 4.91×1021 platinum atoms?
What is the mass of 4.91 × 10^21 platinum atoms?
convert from atoms >> to number of moles by Avogadros number>> to mass by molar mass
molar mass of platinum = 195.084 g /mole
Avogadros number =6.0221409 × 10^23
mass of platinum = (4.91 × 10^21 atoms) × ( 1 mole / 6.0221409 × 10^23 atoms)
× ( 195.084 g /mole)
mass of platinum = 1.593807412 g
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