Question

Equation Unbalanced : __AlCl3 + __F2 --> __AlF3 + __Cl2

When 4.00g of flourine reacts with excess aluminum chloride, how many grams of chlorine gas are produced? First balance the equation.

Answer 1

`\\ \rm\Rrightarrow 2AlCl_3+3F_2\longrightarrow 2AlF_3+3Cl_2`

• Balanced

3mols of fluorine produce 2 mol chlorine

1 mol fluorine produces 2/3=0.6mol chlorine

Moles of fluorine gas=

• 4/19
• 0.2mol.approx

Moles of chlorine:-

• 0.2(0.6)=0.18mol

Mass of chlorine

• 71(0.18)
• 12.78g