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The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much energy will be released when 198.5 mL of 0.400 M HCl is mixed with 150.1 mL of 0.500 M NaOH?


    0.1985L x 0.400 = 0.07940 mol HCl
    0.1501L x 0.500 = 0.07505 mol NaOH

    Therefore, 0.07505 mol react.
    0.07505 mol x 56 kJ/mol = ? kJ

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