Question

Study the flow chart below and answer the questions that follow
     

1. Identify gas:
   1. J
   2. K
2. Write the equation for the reaction that occurs in steps:
   (V)
   (VI)
3. Name substance N
4. Write an equation for formation of R and explain why high pressure is required in converting J to R  
5. Give one commercial use of;
   1. Liquid T
   2. Compound Q
6. Describe a chemical test that would be used to distinguish the anion in compound Q and the product in Step IV  
7. State and explain the observation made when concentrated sulphuric (VI) is added to crystals of copper (II) Sulphate in a beaker. 

Answer 1

1.  
   1. J  Sulphur (IV) Oxide 
   2. K  Nitrogen(II)Oxide 
2. V    NH₄NO₃(s)→  N₂O(g) + 2H₂O(l)        
   VI  SO₃(g) + H₂SO₄(l) →  H₂S₂O₇(l) 
3.  Vanadium (VI) Oxide
4. 2SO₂(g)+O₂(g) → 2SO₃(g)
   Forward reaction leads to reduction in volume, high pressure is required to reduce the volume
5.  
   1. Manufacture of fertilizer, Dyes, drugs, paints 
   2.   As a fertilizer 
6. Product  SO₄²⁻/NO₃⁻
   Chemical test; To each sample add barium Nitrate for SO₄²⁻ a white preicpitate is formed for NO₃⁻,no white precipitate
7. Blue crystals changes to white powder
   Conc H₂SO₄ dehydrates hydrated copper sulphate