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The fermentation of glucose produces ethanol as shown in the equation below C2H12O6(aq) ---> 2CH3CH2OH(aq) + 2CO2(g) (i) State how the concentration of ethanol produced could be...

      

The fermentation of glucose produces ethanol as shown in the equation below
C2H12O6(aq) ---> 2CH3CH2OH(aq) + 2CO2(g)
(i) State how the concentration of ethanol produced could be increased
(ii) State and explain the observation that would be made when a piece of sodium
metal is added to a sample of ethanol contained in a beaker
(iii) Give two commercial uses of ethanol other in the manufacture of alcoholic
drinks

  

Answers


Kavungya
(i) distillation
(ii) – Sodium metal disappears/ dissolves/ clarts around
- Bubbles of a colourless gas/ effervescence beaker become
warm
Sodium metal reacts with ethanol to produce hydrogen gas (I)
The reaction is exothermic/ heat is evolved
(iii) Fuel/gasoline
- Solvent
- Starting material for manufacture of P.V.C, etheneglycol e.t.c
- Skin disinfect/ antiseptic
- In thermometer/ in making alcohol thermometers
Kavungya answered the question on June 22, 2019 at 08:45


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