Question

Осуществите следующие превращения P -> Ca3P2 -> PH3 -> P2O5 -> K3PO4 -> AgPO4

Answer 1

P -> Ca₃P₂ -> PH₃ -> P₂O₅ -> K₃PO₄ -> Ag₃PO₄

2P + 3Ca = Ca₃P₂

Ca₃P₂ + 6HCl = 2PH₃↑ + 3CaCl₂

2PH₃ + 4O₂ = P₂O₅ + 3H₂O

P₂O₅ + 6KOH = 2K₃PO₄ + 3H₂O

K₃PO₄ + 3AgNO₃= Ag₃PO₄↓ + 3KNO₃ 

Answer 2

Transformation of P to Ca3P2

The transformation of P to Ca3P2 involves the reaction of phosphorus with calcium. Phosphorus reacts with calcium to form calcium phosphide (Ca3P2). The balanced chemical equation for this reaction is:

2P + 3Ca -> Ca3P2

Transformation of Ca3P2 to PH3

The transformation of Ca3P2 to PH3 involves the reaction of calcium phosphide with water. Calcium phosphide reacts with water to produce phosphine gas (PH3) and calcium hydroxide. The balanced chemical equation for this reaction is:

Ca3P2 + 6H2O -> 2PH3 + 3Ca(OH)2

Transformation of PH3 to P2O5

The transformation of PH3 to P2O5 involves the combustion of phosphine gas. Phosphine gas reacts with oxygen in the air to form phosphorus pentoxide (P2O5) and water. The balanced chemical equation for this reaction is:

4PH3 + 5O2 -> 2P2O5 + 6H2O

Transformation of P2O5 to K3PO4

The transformation of P2O5 to K3PO4 involves the reaction of phosphorus pentoxide with potassium hydroxide. Phosphorus pentoxide reacts with potassium hydroxide to produce potassium phosphate (K3PO4). The balanced chemical equation for this reaction is:

P2O5 + 6KOH -> 2K3PO4 + 3H2O

Transformation of K3PO4 to AgPO4

The transformation of K3PO4 to AgPO4 involves the reaction of potassium phosphate with silver nitrate. Potassium phosphate reacts with silver nitrate to produce silver phosphate (AgPO4) and potassium nitrate. The balanced chemical equation for this reaction is:

3K3PO4 + 4AgNO3 -> 12KNO3 + Ag3PO4

Please note that these transformations involve specific chemical reactions and may require specific conditions such as temperature, pressure, and catalysts.