Homework Help: ThermoChemistry

Posted by LaurenB on Friday, December 2, 2011 at 2:25pm.

Calculate the final temperature of solution when 10 g of oxalic acid, (COOH)2(s), is dissolved in 110.0 mL of water that is initially at 26 C. The enthalpies of formation of oxalic acid in the solid and aqueous phases are -826.8 and -818.8 kJ/mol, respectively. The heat capacity of water is 4.184 J/g*K. Ignore the heat capacity of oxalic acid.

ThermoChemistry - DrBob222, Friday, December 2, 2011 at 9:29pm
This is done the same way as the NaCl problem posted earlier; however, in this case the DHsoln is a negative number which means you make q a + number.

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