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[Eg155]

A cell is set up: Mg/ Mg2+//H+/H₂

The volumes of the electrolytes are 250mL

The cell is run for a period of time, after which the Mg<sub>(aq) concentration is found to be 0.34mol/L

q1: what volume of hydrogen gas evolved?

q2: The molar heat of combustion of hydrogen is 285KJ/mol
By how many degrees Celsius would this volume of hydrogen raise the temperature of 500g of water?</sub>

 

[Riproot]

What have you got so far?

 

[Mr Slick]

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