Question

In the laboratory, methane can be prepared from salts of alkanoic acids. Describe how methane is prepared from sodium ethanoate.

Answer 1

1. Heat a mixture of sodium ethanoate and sodalime
2. Collect the gas over water /use syringe/upward delivery/downward displacement of air.(condition of heat must)
3. Mixture of sodalime and ethanoate 
4. Arrow for heat 
5. Method of collection
   .                                                   CaO
6. Sodium ethanoate + sodalime  Methane + Na₂CO                                                  .  .                                                    Heat                               
   .                                (then mention method of collection   )