Water Absorption Reaction in Chemistry

Mole Ratio of Water to H₃PO₄

Water is sometimes removed from the products of a reaction by placing the products in a closed container with excess P₄O₁₀. Water is absorbed by the following reaction:

P₄O₁₀ + 6H₂O → 4H₃PO₄

What is the mole ratio of water to H₃PO₄? Do not simplify the ratio.

H₂O : H₃PO₄ = 6 : 4.

I just took the test and got it right!

What is the mole ratio of water to H₃PO₄ in the given reaction? The correct answer for mole ratio of H₂O : H₃PO₄ = 6 : 4. Mole ratio: It is defined as mole of one substance to another substance in a balanced reaction. In the balanced reaction, the coefficient written before the substances are taken as moles of that substance. The given balanced reaction between P₄O₁₀ and H₂O is: P₄O₁₀ + 6 H₂O → 4 H₃PO₄ Mole of H₂O = 6 Mole of H₃PO₄ = 4 Hence mole ratio of Water : H₃PO₄ = 6 : 4
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