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AP Chemistry

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Water is being electrolysed in the presence of a non-reactive electrolyte under standard conditions. If 2.5 amperes of current flows through the circuit for 13.6 minutes at 25 degrees celsius and 1 atmosphere, what volume of hydrogen gas is produced?
Please, I need help with this question. Thank You.

  • AP Chemistry -

    coulombs = amperes x seconds
    2.5 A x 13.5 min x (60 sec/min) = about 2000 C (but you should do it more accurately)
    2000C/96,485 = ?F
    1 F will free 11.2 L hydrogen.

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