The enthalpy of neutralization for the reaction of a strong...

The enthalpy of neutralization for the reaction of a strong acid with a strong base is $-56 \mathrm{~kJ} / \mathrm{mol}$ water produced. How much energy will be released when $200.0 \mathrm{~mL}$ of $0.400 \mathrm{M} \mathrm{HCl}$ is mixed with $150.0 \mathrm{~mL}$ of $0.500 \mathrm{M} \mathrm{NaOH}$ ?

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Exothermic Reaction

An exothermic reaction is one that releases heat to its surroundings. Understanding this concept is important when analyzing reactions like neutralization, where the energy released is related to the formation of products such as water.

Limiting Reactant

In any chemical reaction, the limiting reactant is the substance that is completely consumed first, thus limiting the amount of product formed. Identifying the limiting reactant is crucial for accurately determining the extent of a reaction and the related energy change.

Mole Calculations

Calculating the number of moles from given volumes and molarities is fundamental in chemistry. This concept allows the determination of the exact amount of reactants involved in a reaction, which is essential for stoichiometric and energy calculations.

Enthalpy of Neutralization

This concept refers to the heat change when one mole of water is produced during a neutralization reaction between an acid and a base. It is a specific type of reaction enthalpy that is key to understanding the energy changes in acid-base reactions, usually expressed in kilojoules per mole of water formed.

Transcript

00:01 The enthalpy of a enthalpy of neutralization for the reaction of a strong acid and strong base is negative 56 kilojoules per mole of h2o produced.

00:41 How much energy will be released when 200 milliliters of hcl is mixed with 150 milliliters of an aoh? and i'm going to do one more thing here before i start solving the problem.

01:15 We're also given the concentration of 0 .4 .00 moles per liter and 0 .50.

01:42 Okay, so there's my information that i've got.

01:45 How much energy will be released? find energy released.

02:06 I'm just reading the rest of the question.

02:08 There we go.

02:11 Okay, so let's get started on this.

02:13 So i'm going to write down my reaction first of all.

02:17 I'm going to write my reaction right here.

02:21 And i'm not going to put my states on just to keep things a little neat.

02:31 There's my balanced chemical equation.

02:34 So we're going to find our limiting reactants.

02:39 And let me see.