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Topic: Enthalypy of Rxn - Ice Calorimeter  (Read 4760 times)

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moyboy8

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Enthalypy of Rxn - Ice Calorimeter
« on: March 20, 2006, 12:27:12 AM »
Exothermic rxn:
Mg(s) + 2H(aq) --> Mg(aq) + H2(aq)

A magnesium sample having a mass of 0.0670 grams reacts with excess HCl and melts the ice in the calorimeter that resulted in a volume changed of 0.290 ml.

Calculate the number of grams of ice melted during this experiment.
Calculate the number of moles of ice melted during this experiment.
Calculate the heat released during this reaction.
Calculate the enthalpy of formation of magnesium, DHf(Mg2+), in Kcal/mole for this reaction.
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Offline Borek

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Re:Enthalypy of Rxn - Ice Calorimeter
« Reply #1 on: March 20, 2006, 05:55:02 AM »
Please read forum rules.
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Offline xiankai

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Re:Enthalypy of Rxn - Ice Calorimeter
« Reply #2 on: March 20, 2006, 06:51:14 AM »
and your equation... where are the ionic charges?
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