ANSWER
Explanation:
Given information
The number of moles of chlorine = 3.4 moles
Step 1: write a balanced equation of aluminum and chlorine
Step 2: Find the number of moles of aluminum using a stoichiometry ratio
From the above reaction, you will see that 2 moles of aluminum react with 3 moles of chlorine to give 3 moles of aluminum chloride.
Let x represents the number of aluminum