Kelly B.

asked • 10/23/21

PLEASEEE chemistry problem please help

During lab, a student mixed 25 mL of 1.0 M H3PO4 with 75 mL of 1.0 M NaOH. Using the equation below, determine how many moles of reaction the student performed.

 ____ moles of reaction

The intial temperature of both the acid and the base were 22.6 oC, but they rose to 28.2 oC during the reaction. If the calorimeter constant was 78.5 J/oC, what was qrxn in J?

_____ J

Using your answers above, what was the reaction enthalpy, ΔHrxn, in kJ per mol reaction?

 _____ kJ/mol of reaction

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