Answer:
The number of moles of B that will completely react with;
8 moles of A is 12 moles of B
9 moles of A is 13.5 moles of B
3 moles of A is 4.5 moles of B
10 moles of A is 15 moles of B
Explanation:
From the reaction, we have the mole ratio of the reactants is 2 moles of A combines with 3 moles of B to form 3 moles of C
Therefore, one mole of A which is 2 moles/2 will combine with 3/2 moles of B
Hence 8 moles of A will combine with 8×3/2 or 12 moles of B
9 moles of A will combine with 9×3/2 or 13.5 moles of B
3 moles of A will combine with 3×3/2 or 4.5 moles of B
10 moles of A will combine with 10×3/2 or 15 moles of B