9.6 Electrolysis of Aqueous Solution

Which of the following factor does not affect the electrolysis of an aqueous solution?
Antara faktor berikut, yang manakah tidak mempengaruhi elektrolisis larutan akueus?
 

Which substance conducts electric current in aqueous state?
Bahan manakah yang mengkonduksikan arus elektrik dalam keadaan akueus?
 

A concentrated sodium chloride solution is electrolysed using carbon electrodes.
Which are the half-equations that represent the reactions at the anode and the cathode?
Larutan natrium klorida pekat dielektrolisis, menggunakan elektrod karbon.
Setengah persamaan manakah yang mewakili tindak balas di anod dan di katod?

Diagram 7 shows the apparatus set-up for two simple cells.
Rajah 7 menunjukkan susunan radas bagi dua sel ringkas.
       

Based on Diagram 7, which statement is correct?

Berdasarkan Rajah 7 , penyataan manakah yang betul?
 

During electrolysis of copper(II) chloride solution using carbon electrodes, the colour of the electrolyte turn from blue to light blue.
Which statement best explains the observation?
Semasa elektrolisis larutan kuprum(II) klorida dengan menggunakan elektrod karbon warna elektrolit bertukar daripada biru menjadi biru muda. Penyataan manakah yang paling baik untuk menerangkan pemerhatian itu?
 

Diagram 14 shows the apparatus set-up for the sulphate solution using carbon electrodes.
Rajah 14 menunjukkan susunan radas bagi elektrolisis 25,0 \(\mathrm{cm}^3\) larutan kuprum(II) sulfat

                                         
After the reaction is completed, the blue copper(II) sulphate solution turns colourless.
What is the mass of the carbon cathode?
[Relative atomic mass: \(\mathrm{C}=12, \mathrm{O}=16, \mathrm{~S}=32\), \(\mathrm{Cu}=64]\)
Selepas tindak balas selesai, larutan biru kuprum(II) sulfat bertukar menjadi tanpa warna. Apakah jisim elektrod katod karbon?
[Jisim atom relatif: \(\mathrm{C}=12, \mathrm{O}=16, \mathrm{~S}=32\), \(\mathrm{Cu}=64]\)
 

Diagram 15 shows the apparatus set-up for electrolysis of ammonia solution and sodium hydroxide solution.
Rajah 15 menunjukkan susunan radas bagi proses elektrolisis larutan ammonia dan larutan natrium hidroksida.

Which statement explains the difference in the brightness of the bulb?
Pernyataan manakah yang menerangkan tentang perbezaan kecerahan mentol tersebut?