A 550 G Solution at 27

question 6

Multiple Choice

A 550 g solution at 27.27°C is produced by mixing 0.800 mol hydrocyanic acid with 0.800 mol potassium hydroxide (40.00 g/mol) in water initially at 23.20°C.Calculate the molar enthalpy of neutralization of HCN with KOH.Assume that the heat capacity of the solution is 4.18 J/(g . ^oC) .

• A)"13.1 kJ/mol"
• B)"-5.85 kJ/mol"
• C)"5.85 kJ/mol"
• D)"-11.7 kJ/mol"
• E)"11.7 kJ/mol"

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