Chemistry 9701 · AS & A Level · Electrochemistry

Electrochemistry — practice question

Brine is a concentrated solution of sodium chloride in water. During the industrial electrolysis of brine, chlorine, hydrogen and sodium hydroxide are formed. What is the greatest yield of each of these products when $58.5\text{ kg}$ of sodium chloride are electrolysed as brine?

  • Achlorine $35.5\text{ kg}$; hydrogen $1\text{ kg}$; sodium hydroxide $40\text{ kg}$
  • Bchlorine $35.5\text{ kg}$; hydrogen $2\text{ kg}$; sodium hydroxide $40\text{ kg}$
  • Cchlorine $71\text{ kg}$; hydrogen $1\text{ kg}$; sodium hydroxide $40\text{ kg}$
  • Dchlorine $71\text{ kg}$; hydrogen $2\text{ kg}$; sodium hydroxide $80\text{ kg}$

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