Friday
March 6, 2015

Homework Help: AP Chem

Posted by Beth on Saturday, November 6, 2010 at 10:47pm.

A student conducts an experiments to determine the enthalpy of neutralization for phosphoric acid reacting with sodium hydroxide. The student combines 25.0 mL of equimolar solutions of acid and base, both having an initial temperature of 22.5 degree C, in an open polystrene calorimeter. Each solution has a density of 1.00g/mL and a specific heat of 4.18 J/g x degree C. The student collects data until a maximum temperature of 26.4 degree C is reached.


Calculate the qrxn for the neutralization reaction. (What is qrxn??) and how does the student know the data collection is complete?

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