Determine the number of molecules in an iron object weighing 500 grams.
| September 10, 2021 | education
Data: m (mass of the specified iron object) = 500 g; M (molar mass of iron) = 55.845 g / mol; Na (Avogadro’s number) = 6 * 10 ^ 23 mol-1.
To calculate the number of molecules (atoms) in the specified iron object, we use the formula: N = m * Na / M = 500 * 6 * 10 ^ 23 / 55.845 = 53.72 * 10 ^ 23 molecules (atoms).
Answer: The specified iron object contains 53.72 * 10 ^ 23 iron atoms.
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