Question

te Current Highlighter Zoom In Zoom Out Start Reading Stop Reading Hide Navigation Inside the book 8 Quantities in Chemical Reactions 276Front Matter 44. Consider the generic chemical equation Brief Contents What is the limiting reactant when each of the initial Contents quantities of A and B is allowed to react? o the Student (a) 1 mol A; 4 mol B (b) 2 mol A; 3 mol B (c) 0.5 mol A; 1.6 molB (d) 24 mol A; 75 mol B o. ace 1 The Chemic 2 Measureme Solving 45. Determine the theoretical yield of C when each of the initial

Answer 1

From the balanced equation,

1 mol of A needs 3 mol of B

(a)

From the balanced equation,

A is limiting reagent.

1 mol of A needs 3 mol of B only

(b)

B is limiting reagent.

2 mol of A needs 6 mol of B

(c)

A is limting reagent.

0.5 mol of A needs 0.5 * 3 = 1.5 mol of B only.

(d)

24 mol of A needs 24 * 3 = 72 mol of B only

So, A is limiting reagent.