Dialuminum hexachloride, Al₂Cl₆ (266.66 g/mol) , is an inexpensive compound that is used in many industrial processes. It is made by treating scrap aluminum with chlorine gas. If a reaction is run with 270 g of aluminum and 710 grams of chlorine, the limiting reactant is ________, and the theoretical yield is ________ of Al₂Cl₆.

2Al(s) 3Cl₂(g) Al₂Cl₆(s)

Question

Dialuminum hexachloride, Al₂Cl₆ (266.66 g/mol) , is an inexpensive compound that is used in many industrial processes. It is made by treating scrap aluminum with chlorine gas. If a reaction is run with 270 g of aluminum and 710 grams of chlorine, the limiting reactant is ________, and the theoretical yield is ________ of Al₂Cl₆.

2Al(s)

Dialuminum hexachloride, Al<sub>2</sub>Cl<sub>6</sub> (266.66 g/mol) , is an inexpensive compound that is used in many industrial processes. It is made by treating scrap aluminum with chlorine gas. If a reaction is run with 270 g of aluminum and 710 grams of chlorine, the limiting reactant is ________, and the theoretical yield is ________ of Al<sub>2</sub>Cl<sub>6</sub>. 2Al(s) 3Cl<sub>2</sub>(g) Al<sub>2</sub>Cl<sub>6</sub>(s) A) Al; 890 g B) Cl<sub>2</sub>; 890 g C) Al; 1,300 g D) Cl<sub>2</sub>; 1,300 g E) Cl<sub>2</sub>; 2,700 g

3Cl₂(g)

Al₂Cl₆(s)

Quizplus · Accepted Answer

First, we need to determine the limiting reactant by converting the given masses into moles.

270 g Al x (1 mol Al/26.98 g Al) = 10.01 mol Al 
710 g Cl2 x (1 mol Cl2/70.91 g Cl2) = 9.99 mol Cl2

Since aluminum has a higher number of moles, it is not the limiting reactant. The moles of Cl2 are slightly less than the moles of Al, so Cl2 is the limiting reactant.

To find the theoretical yield, we need to use stoichiometry to determine the amount of product that can be formed from the limiting reactant. The balanced chemical equation tells us that 2 moles of Al react with 3 moles of Cl2 to produce 2 moles of Al2Cl6.

9.99 mol Cl2 x (2 mol Al2Cl6/3 mol Cl2) x (266.66 g Al2Cl6/1 mol Al2Cl6) = 890 g Al2Cl6

Therefore, the answer is B) Cl2; 890g.

Dialuminum Hexachloride, Al2Cl6 (266

Dialuminum Hexachloride, Al₂Cl₆ (266