Practice Enthalpy Of Neutralization (δh_neut°) (1.4.3) - Unit 5: Energetics and Thermochemistry

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6 sample questions

Question 1.
Define the enthalpy of neutralization.
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What happens chemically when acids and bases react?
Question 2.
What is the approximate value of ΔH_neut° for strong acid and base reactions?
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What do we typically associate with the reaction of strong acids and bases?
3Question 3.
What is the enthalpy change when a strong acid reacts with a strong base?
- +57.3 kJ/mol
- 0 kJ/mol
- -57.3 kJ/mol
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Think about the typical energy release in acid-base reactions.
4Question 4.
True or False: The enthalpy of neutralization is the same for all acids and bases.
- True
- False
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Consider the strength of dissociation in acids.
Question 5.
If 25 mL of 1 M hydrochloric acid is mixed with 25 mL of 1 M sodium hydroxide, calculate the total energy released in kJ.
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Remember to find the moles of reactants first.
Question 6.
Discuss the limitations of expecting -57.3 kJ/mol when using weak acids for neutralization reactions.
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Consider the implications of weak versus strong acid behavior.

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