J 3) If 4.00 g of iron metal are reacted in a calorimeter with a heat capacity of 400. C' what would be the final temperature of the calorimeter if its initial temperature were 23.0°C? General Chemistry I Laboratory Manual, 201 2) Calculate AH for the reaction below using Hess' law. 2C2H6(g) 2C2H2(g) + 4H2(g) AH=? 2C2H2(g) +502(g)> 4CO2(g) + 2H20(1) AH -2600 kJ 2H2(g) + O2(g) 2H20(1) AH -572 kJ C2H6(g) +7/2O2(g) 2CO2(g) + 3H2O(I) AH =-1760 kJ

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