Two Solutions,initially at 24

question 29

Multiple Choice

Two solutions,initially at 24.69°C,are mixed in a coffee cup calorimeter (C_cal = 105.5 J/°C) .When a 200.0 mL volume of 0.100 M AgNO₃ solution is mixed with a 100.0 mL sample of 0.100 M NaCl solution,the temperature in the calorimeter rises to 25.16°C.Determine the DH°_rxn,in units of kJ/mol AgCl.Assume that the density and heat capacity of the solutions is the same as that of water.Hint: Write a balanced reaction for the process.

• A) -32 kJ/mol AgCl
• B) -78 kJ/mol AgCl
• C) -64 kJ/mol AgCl
• D) -25 kJ/mol AgCl
• E) -59 kJ/mol AgCl

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The interest rate that has been adjusted to remove the effects of inflation, reflecting the real cost of funds to the borrower and the real yield to the lender.