Question

What are the possible molar ratios for 2H₃​PO₄​ in the following equation? aH₃​PO₄​+bH₂​O→cH₂O+dH₃​PO₄​ A) 1:2 B) 2:1 C) 1:1 D) 2:3

Answer 1

The possible molar ratios for H₃PO₄ in the following equation are 1:2 and 2:1. Options A and B are answers.

Step-by-step explanation:

The balanced equation for the reaction is:

2H₃PO₄ + 2H₂O → 3H₂O + 2H₃PO₄

This equation shows that two moles of H₃PO₄ react with two moles of H₂O to produce three moles of H₂O and two moles of H₃PO₄. Therefore, the possible molar ratios for H₃PO₄ are 1:2 and 2:1.

In conclusion, the free energy change for the reaction 2NH₃(g) + 3N₂O(g) → 4N₂(g) + 3H₂O(g) at standard conditions and 298 K is -1192.38 kJ. This indicates that the reaction is spontaneous under these conditions.

Options A and B are answers.