A chemist has a jar containing 388.2 g of iron filings. How many moles of iron does the jar contain?

Answers (1)

To find the number of moles, we need to know the mass and molar mass of the element, and the formula is:
Number of moles = Mass (g) / Molar Mass
Mass = 388.2
Molar Mass of Iron = 56
Moles of Iron = 388.2 / 56 = 6.93

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