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During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05...

During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solution\'s final volume is 100.0 mL, the density is 1.00 g/mL, and the specific heat is 4.184 J/(g·°C), calculate the heat of the reaction, ΔHrxn.

Ca(s)+2H+(aq) ---->Ca2+(aq) + H2(g)

delta Hrxn= ______kJ/mol

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