PROBLEM 43P

Consider the generic chemical equation:

2 A + 4 B → 3 C

What is the limiting reactant when each of the initial quantities of A and B is allowed to react?

(a) 2 mol A; 5 mol B

(b) 1.8 mol A; 4 mol B

(c) 3 mol A; 4 mol B

(d) 22 mol A; 40 mol B

Solution 43P

Step 1:

Given generic chemical equation:

2 A + 4 B → 3 C

We have to find which is the limiting reactant when each of the initial quantities of A and B is allowed to react

2 A + 4 B → 3 C

The ratio of reactants to products in the given equation is in the ratio :

2 : 4 → 3