Answer:
It will be produced 1 mol of H₃PO₄
Step-by-step explanation:
The reaction is this one:
P₄O₁₀ + 6H₂O → 4H₃PO₄
Molar mass of P₄O₁₀ = 283.88 g/m
Mol = Mass / Molar mass
Mol = 71 g / 283.88 g/m = 0.250 mol of P₄O₁₀
Ratio is 1:4 so 1 mol of P₄O₁₀ will produce 4 moles of phosphoric in the reaction.
0.250 mol of P₄O₁₀ will produce 1 mol of H₃PO₄ (0.250 .4)