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Two solutions, 50.0 mL of 1.00 M BaCl2 (aq) and 50.0 mL of 1.00 M Na2SO4...

Two solutions, 50.0 mL of 1.00 M BaCl2 (aq) and 50.0 mL of 1.00 M Na2SO4 (aq), both at 21.5 ° C, are mixed in a thermometer. The heat capacity of the thermometer with the solutions in is 1.23 kJ / ° C. During mixing, the temperature of the solution rises to 23.4 ° C. How much heat (qrxn) is released from the reaction that occurs when 1 mole of BaSO4 (s) is precipitated? Give the answer in kJ.

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