Calculate the molar mass of the metal.

2. In an experiment like this one, a student used an unknown metal that was known to undergo this half-reaction at the anode:

M(s) ? M3+(aq) + 3 e ?

During the experiment, the mass of the metal anode decreased by 0.200 g, and 1.44×10-3 mole of H2 gas were collected at the cathode. Calculate the molar mass of the metal. SHOW UNITS in all calculations, and PROPERLY ROUND all calculated values.


 

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