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When electric current is passed through acidified water for $1930\;seconds,\;1120\;ml$ of $H_2$ gas is collected (at STP) at the cathode. What is the current passed in amperes?

\[\begin {array} {1 1} (1)\;0.05 & \quad (2)\;0.50 \\ (3)\;5.0 & \quad (4)\;50 \end {array}\]
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(3) 5.0
answered Nov 7, 2013 by pady_1
 

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