The ΔH for the Solution Process When Solid Sodium Hydroxide

question 133

Multiple Choice

The ΔH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When a 10.1-g sample of NaOH dissolves in 250.0 g of water in a coffee-cup calorimeter, the temperature increases from 23.0 °C to __________°C. Assume that the solution has the same specific heat as liquid water, i.e., 4.18 J/g-K.

• A)35.2
• B)24.0
• C)33.7
• D)33.3
• E)40.2

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Definitions:

H0

The notation for the null hypothesis in statistical hypothesis testing, representing no effect or no difference.

Reject

In statistical analysis, to refuse the null hypothesis, concluding there is sufficient evidence to support a significant effect or difference.

H0

Stands for the null hypothesis in statistical hypothesis testing, representing the assumption that there is no significant difference or effect.

Reject

In statistical hypothesis testing, the process of dismissing the null hypothesis based on the evidence from the data analysis.