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4. The enthalpy change when a strong acid is neutralized by strong base is -57.62 kJ/mol. If 1.7mL of 12.5 M HBr at 21.30°C i
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Answer #1

Maximum temperature reached = 21.69°C

Reaction between HBr and Nach: HBr (aq) + NaOH @p) NaBr (aq) + H20 (1) Noles of HBy = 7.7mL x 125 m =124 x 12.5 moye 1000 = 0

. Since all the heat is absorbed by the solution, & solution = 1224.425 J incat = 1224.425 I 751.79 x 478 I x (T. – 21:30) C

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