Question

A total of 5 mol iron oxide has a mass of (798.5g)

Answer 1

Yes , 5 mole of Iron Oxide has mass of 798.5 g

Step-by-step explanation:

Formula of iron oxide:

`Fe_(2)O_(3)`

Atomic mass of Fe = 55.84 amu

Atomic mass of O = 15.99 amu

Molar mass of Fe2O3 = 2(atomic mass of Fe) + 3(atomic mass of O)

= 2(55.84) + 3(15.99)

=111.68 + 47.97

= 159.69 g/mol

Molar mass always equal to 1 mole of the substance.

1 mole = 159.69 g

5 mole =

`=5*159.69`

= 798.45 g