A piece of phosphorous was burnt in excess air. The product obtained was shaken with a small amount of hot water to make a solution i)...

      

A piece of phosphorous was burnt in excess air. The product obtained was shaken with a small amount of hot water to make a solution
i) Write an equation for the burning of phosphorus in excess air
ii) The solution obtained above was found to have pH of 2. Give reasons for this observation

  

Answers


Maurice
i) P4(g) + 5O2(g) ______________ 2P2O5(s)
// P4(s) + 3O2(g) ____________ 2P2O3(g)


ii) Phosphorous (v) or (iii) oxide formed is an acidic Oxide which dissolves in water to form a strong acidic solution of phosphoric acid whose PH is 2
maurice.mutuku answered the question on October 14, 2019 at 06:59


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