更新1:
According to the following reaction, how many moles of phosphoric acid will be formed upon the complete reaction of 0.157 moles diphosphorus pentoxide with excess water? P2O5 (s) + 3H2O (l) 2H3PO4 (aq) moles phosphoric acid
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回答 (2)
2016-02-26 7:52 pm
P₂O₅(s) + 3H₂O(l) → 2H₃PO₄(aq)
1 mole of P₂O₅ gives 2 moles of H₃PO₄.
No. of moles of P₂O₅ = 0.157 mol
No. of moles of H₃PO₄ formed = 0.157 × 2 = 0.314 mol
1 mole of P₂O₅ gives 2 moles of H₃PO₄.
No. of moles of P₂O₅ = 0.157 mol
No. of moles of H₃PO₄ formed = 0.157 × 2 = 0.314 mol
2016-02-26 7:34 pm
0.157 mol P2O5 X (2 mol H3PO4 / 1 mol P2O5) = 0.314 mol H3PO4
收錄日期: 2021-04-18 14:31:26
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