7. Fig. 7.1 shows a simplified diagram of the electrolysis of sodium chloride solution, used to produce chlorine in industry. concentrated sodium chloride solution anode chlorine gas H permeable membrane cathode Fig. 7.1 hydrogen gas The balanced equation for the overall chemical change that occurs in the process shown in Fig. 7.1 is 2NaCl + 2H₂O → 2NaOH + Cl₂ + H₂ a. Show that the relative formula mass of sodium chloride is 58.5 sodium hydroxide solution b. Calculate the number of moles in 234g of sodium chloride. Show your working. Number of moles= Volume= c. Calculate the volume of chlorine molecules produced at room temperature and pressure, when 234g of sodium chloride are electrolysed. (1 mole of chlorine molecules has a volume of 24 dm³ at room temperature and pressure). Show your working

7. Fig. 7.1 shows a simplified diagram of the electrolysis of sodium chloride solution, used to produce chlorine in industry. concentrated sodium chloride solution anode chlorine gas H permeable membrane cathode Fig. 7.1 hydrogen gas The balanced equation for the overall chemical change that occurs in the process shown in Fig. 7.1 is 2NaCl + 2H₂O → 2NaOH + Cl₂ + H₂ a. Show that the relative formula mass of sodium chloride is 58.5 sodium hydroxide solution b. Calculate the number of moles in 234g of sodium chloride. Show your working. Number of moles= Volume= c. Calculate the volume of chlorine molecules produced at room temperature and pressure, when 234g of sodium chloride are electrolysed. (1 mole of chlorine molecules has a volume of 24 dm³ at room temperature and pressure). Show your working

Chemistry

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Chapter20: The Representative Elements

Section: Chapter Questions

Problem 18E

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Question

7. Fig. 7.1 shows a simplified diagram of the electrolysis of sodium chloride solution, used to
produce chlorine in industry.
concentrated sodium
chloride solution
anode
cathode
gas
111
chlorine
gas
permeable membrane
hydrogen
Fig. 7.1
The balanced equation for the overall chemical change that occurs in the process shown in
Fig. 7.1 is
2NaCl + 2H₂O → 2NaOH + Cl₂ + H₂
a. Show that the relative formula mass of sodium chloride is 58.5
sodium hydroxide
solution
b. Calculate the number of moles in 234g of sodium chloride. Show your working.
Number of moles=
Volume=
c. Calculate the volume of chlorine molecules produced at room temperature and pressure,
when 234g of sodium chloride are electrolysed. (1 mole of chlorine molecules has a volume of
24 dm³ at room temperature and pressure).
Show your working

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