Determine the limiting reactant (i.e. the reactant that forms the least number of mass of the product):
Mass of PCl3 produced from P4:
Mass of PCl3 produced from Cl2:
The limiting reactant is Cl2, therefore it is used up completely in the reaction, and P4 is the excess reactant.
Elemental phosphorus reacts with chlorine gas according to the equation:
P4(s) + 6 Cl2(g) → 4 PCl3(l)
A reaction mixture initially contains 45.53 g P4 and 131.1 g Cl2.
Once the reaction has occurred as completely as possible, what mass (in g) of the excess reactant remains?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Limiting Reagent concept. You can view video lessons to learn Limiting Reagent. Or if you need more Limiting Reagent practice, you can also practice Limiting Reagent practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Bolanos' class at MIRACOSTA.