Chemistry question?

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what is the molar mass of iron, Fe? How many moles of iron atoms are in 111.8 grams of iron?

2007-03-07 11:38:30 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

3 answers

The molar mass is found by looking up the mass of Fe on the periodic table.

111.8 g divided by the mass of Fe = moles Fe

2007-03-07 11:46:07 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋

molar mass of iron is 55.845g (bc molar mass is how heavy is a mole of Fe which is the mass given on a periodic table).
?moles of Fe= 111.8gFe*(1mole/55.845)= 2.002moles of Fe is equal to 111.8grams of Fe.

2007-03-07 19:43:41 · answer #2 · answered by Bruno S 3 · 0⤊ 0⤋

take 111.8g/55.8(by the mr of wat u are findin(for tis case its fe))=2 mol

2007-03-07 19:51:21 · answer #3 · answered by Anonymous · 0⤊ 1⤋