What is the mass, in grams, of 2.50 moles of iron(II) hydroxide, $Fe(OH)_2$ ?

Question

30989 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-12-15T04:43:32

The mass of $"2.50 mol Fe(OH)"_2"$ is $"225 g"$ .

The mass of one mole (molar mass) of $"Fe(OH)"_2"$ is $"89.85968 g/mol"$ . http://pubchem.ncbi.nlm.nih.gov/compound/10129897#section=Top To determine the mass of $"2.50 mol Fe(OH)"_2"$ , multiply the given moles by the molar mass.

$2.50 cancel"mol Fe(OH)"_2xx(89.85968"g Fe(OH)"_2)/(1cancel"mol Fe(OH)"_2)="225 g Fe(OH)"_2"$

What is the mass, in grams, of 2.50 moles of iron(II) hydroxide, Fe(OH)_2Fe(OH)_2?