A student, using an ice calorimeter, studies the enthalpy of reaction of the fol

Question

A student, using an ice calorimeter, studies the enthalpy of reaction of the following exothermic chemical change: Mg(s) + 2H+(aq) ? ? Mg2+(aq) + H2(g) From data collected, it was determined that a magnesium sample having a mass of 0.0689 grams would react with excess HCl and melt the ice in the calorimenter that resulted in a volume change of 0.310 ml. Determine the following by referring to your laboratory procedures. Give special consideration to the section dealing with calculations. Calculate the heat released during this reaction in Kcal. Calculate the enthalpy of formation of magnesium, ?Hf(Mg2+), in Kcal/mole for this reaction.

Explanation / Answer

for the first part is it not 0.917 but 0.0907

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