Question

pls help

1. Calculate the mass of iron needed to make 16.25g of iron chloride (3
marks)

2Fe + 3Cl2 → 2FeCl3​

Answer 1

Explanation: 5.6g

the molars of FeCl3 is $\frac{16,25}{56+35,5.3}= 0.1$ (mol)

have:

2Fe + 3Cl2  ⇒ 2FeCl3

 0.1 <=                   0.1

=> the molars of Fe is 0.1 mol

=> the mass of Fe is 0,1.56 = 5.6 (g)