Electrolysis of an acetate solution produces ethane according to the Kolbe reaction: 2 C H 3 C O O - → C 2 H 6 + 2 C O 2 + 2 e - What volume of ethane is produced at 27 ° C and 740 m m H g , if a current of 0.5 ampere were passed through th

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Electrolysis of an acetate solution produces ethane according to the Kolbe reaction: 2 C H 3 C O O - → C 2 H 6 + 2 C O 2 + 2 e - What volume of ethane is produced at 27 ° C and 740 m m H g , if a current of 0.5 ampere were passed through the solution for 7 hours and the electrode reaction is 82 % efficient?

Quantrex Academy · Accepted Answer

Correct answer: C. 1.35 L

Number of moles of e - = 0.500 × 7.00 × 3600 96500 × 0.82 = 0.1071 m o l e Two moles of electrons are associated with 1 m o l e C 2 H 6 , thus, Volume of C 2 H 6 = 0.1071 2 × 22.4 × 760 740 × 300 273 = 1.35 L

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