Answer to Question #192590 in General Chemistry for Jada

Question

What mass of iron is needed to react with 16.0 grams of Sulfur

Answer 1

First, write the chemical reaction:

$$\text{ Fe}+\text{S}→\text{FeS}.$$

This reaction occurs with heat, and it shows that the amount of substance for iron is the same as the amount of substance for sulfur. Find the amount of substance for sulfur:

$$n_S=\frac{m_S}{M_S}=\frac{16}{32}=0.5\text{ mol}.$$

Find the mass of iron:

$$m_I=n_IM_I=n_SM_I=0.5·56=28\text{ g}.$$