A solution prepared by bubbling chlorine gas through a diluted sodium hydroxide solution is described by...
A solution prepared by bubbling chlorine gas through a diluted sodium hydroxide solution is described by the following equation:
Cl2(g) + 2 OH-(aq) → Cl-(aq) + OCl-(aq) + H2O(l)
The chlorine needed for this reaction is obtained from the electrolysis of molten sodium chloride. How much volume of 0.30 M hypochlorite solution can you prepare from chlorine obtained from the electrolysis using 3.0 amp current for 25 minutes assuming 100% yield?
Homework Answers
Mass obtained in electrolysis = Z×I×T
Z= molar mass/96500
I= current = 3A
T= Time = 25mins = 1500 seconds
Mass obtained = (71×3×1500)/96500
Mass of Chlorine = 3.31g
Moles of Chlorine = 3.31/71 = 0.0466
Moles of Chlorine = moles of hypochlorite
Concentration = moles /volume
Volume = moles /concentration
Volume = 0.0466/0.3M = 0.155L = 155mL
Volume required = 155mL
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