need solution urgently   Consider the reaction Ba(OH)2(aq) + 2HCl(aq) ? BaCl2(aq) + 2H2O(l) 100. mL (104 g) of 2.0 M Ba(OH)2 is reacted with 100. mL (101 g) of 1.00 M HCl with the initial temperature of both at 20.00°C. The final temperature was found to be 26.89°C. Assume that the solution has a specific heat capacity of 4.18 J/g °C. Find the enthalpy of reaction as written in kJ/mol.

Chemistry: An Atoms First Approach
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Chapter7: Chemical Energy
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Consider the reaction
Ba(OH)2(aq) + 2HCl(aq) ? BaCl2(aq) + 2H2O(l)
100. mL (104 g) of 2.0 M Ba(OH)2 is reacted with 100. mL (101 g) of 1.00 M HCl with the initial temperature of both at 20.00°C. The final temperature was found to be 26.89°C.

Assume that the solution has a specific heat capacity of 4.18 J/g °C. Find the enthalpy of reaction as written in kJ/mol.

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