Question

B, reacts with AB, to form AB, according to the balanced equation B, + 2AB → 2AB, . If 1.5 moles of B, are reacted with 1.5 moles of AB, the maximum amount of AB, that can form is equal to ____ moles.

A) 0.75
B) 1.5
C) 3.0
D) 4.5

Answer 1

When reacting 1.5 moles of B, with 1.5 moles of AB, following the stoichiometry of the given reaction, the maximum amount of product AB, that can be formed is 1.5 moles, as B, is the limiting reactant in this scenario.

Step-by-step explanation:

The student's question is related to stoichiometry, which is a concept in chemistry that deals with the quantitative relationship between reactants and products in a chemical reaction. The given balanced equation is B, + 2AB → 2AB,. According to this equation, for every mole of B, there needs to be 2 moles of AB to produce 2 moles of AB,. Given that there are 1.5 moles of B, and 1.5 moles of AB, B, is the limiting reactant because there are not enough moles of AB to fully react with B, in a 1:2 ratio.

We can calculate the maximum amount of AB, that can form as follows:

1. For every 1 mole of B,, 2 moles of AB are required. We have 1.5 moles of B,, so this would require 3 moles of AB.
2. Since we only have 1.5 moles of AB, which is only enough for 0.75 moles of B, to react fully.
3. Therefore, the reaction would produce a maximum of 2 × 0.75 = 1.5 moles of AB,.

In conclusion, the maximum amount of AB, that can be formed is 1.5 moles, which corresponds to option B.