The Enthalpy Change When a Strong Acid Is Neutralized by Strong

question 112

Multiple Choice

The enthalpy change when a strong acid is neutralized by strong base is -56.1 kJ/mol.If 135 mL of 0.450 M HI at 23.15°C is mixed with 145 mL of 0.500 M NaOH, also at 23.15°C, what will the maximum temperature reached by the resulting solution? (Assume that there is no heat loss to the container, that the specific heat of the final solution is 4.18 J/g·°C, and that the density of the final solution is that of water.)

• A)20.24°C
• B)26.06°C
• C)29.19°C
• D)32.35°C
• E)36.57°C

---

Definitions:

Lower Confidence Bound

The lower limit of a confidence interval, below which the true parameter of a population is expected not to fall.

Population Means

The average value of a particular characteristic in the entire population being studied.

Z-Value

A measure of how many standard deviations an element is from the mean.

Upper Confidence Bound

A value at the upper end of a confidence interval, indicating the highest value that, with a certain level of confidence, is believed to enclose the true population parameter.