How many moles is 200 g of iron oxide (lll)
| August 14, 2021 | education
m (Fe2O3) = 200 g.
Determine the amount of iron oxide substance. We write down the solution.
For this we use the following formula.
n = m / M.
Where n is the amount of substance.
m is the mass of the substance.
M is the molar mass of the substance.
Find the molar mass of iron oxide.
M (Fe2O3) = 56 * 2 + 16 * 3 = 160 g / mol.
n (Fe2O3) = 200 g / 160 g / mol = 1.25 mol.
This means that the molar mass of iron oxide is 1.25 mol.
Answer: n (Fe2O3) = 1.25 mol.
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