Question

Calculate the number of moles in 112 gram of iron

Answer 1

 1 mole of iron (Fe) = 56 g (molar mass)
Since 56 g of iron = 1 mol.
Therefore, 112 g of iron= 1/ 56 ×112 mol = 2 mol.

Answer 2

Given :

Given mass = 112 gm

To Find :

Number of moles of iron

Solution :

Molar mass of iron (Fe) = 56 gm

We are required to find the number of moles present in 112 grams of Fe

Number of moles = (Given Mass ÷ Molar Mass)

∴ Number of moles in 112 gm of Fe = $\frac{112}{56}$

                                                          =  2 moles

Therefore, the number of moles present in 112 grams of Fe is 2 moles.