In the balanced chemical equation: P4O10 + 6 H2O → 4 H3PO4, what is the mole ratio of H2O to H3PO4?

• A. 4:6
• B. 6:4
• C. 1:1
• D. 2:3

Answer: (B)

Verified step by step guidance

1. Identify the balanced chemical equation given: \(\mathrm{P_4O_{10} + 6\ H_2O \rightarrow 4\ H_3PO_4}\).
2. Look at the coefficients in front of \(\mathrm{H_2O}\) and \(\mathrm{H_3PO_4}\) in the balanced equation. These coefficients represent the mole amounts of each substance involved in the reaction.
3. From the equation, the coefficient for \(\mathrm{H_2O}\) is 6 and for \(\mathrm{H_3PO_4}\) is 4.
4. The mole ratio of \(\mathrm{H_2O}\) to \(\mathrm{H_3PO_4}\) is therefore \$6:4$.
5. This ratio can be simplified if needed, but the problem asks for the mole ratio as given by the balanced equation, so the answer is \$6:4$.