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A 0.1785 g sample of magnesium was burned in an oxygen bomb calorimeter. The total heat capacity of the calorimeter plus wate
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Answer #1

Solution-

First we calculate the heat produced= Heat capacity of calorimeter* ΔT

ΔT= 1.25 oC

Heat produced = -(5760)*(1.25 oC)
= -7200 J
=-7.200 KJ

1 mol Mg = 24.31 g of Mg

= (-7.200/0.1785)*(24.3/1)
=-980.17 KJ/molMg

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