what is heat of nuetralization
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http://www.merriam-webster.com/dictionary/heat%20of%20neutralization
The heat of neutralization refers to the amount of heat energy released or absorbed when an acid and a base react together to form a salt and water. To understand how to calculate the heat of neutralization, you need to know the enthalpy change of the reaction.
The enthalpy change (∆H) is the difference between the energy of the products and the energy of the reactants. In the case of a neutralization reaction, it can be determined experimentally using a calorimeter.
Here's a step-by-step explanation of how to calculate the heat of neutralization:
1. Measure the initial temperature of the acid and the base separately. Note down their values.
2. Combine the acid and the base in a calorimeter and stir the mixture. The temperature of the mixture will increase or decrease depending on the reaction.
3. Measure the final temperature of the mixture once it has reached thermal equilibrium. Note down this value.
4. Calculate the change in temperature (∆T) by subtracting the initial temperature of the mixture from the final temperature.
5. Measure the volume (v) of the combined acid and base mixture.
6. To calculate the heat of neutralization, use the formula: ∆H = q / n, where q is the heat energy and n is the number of moles of water produced during the neutralization reaction.
7. Calculate the heat energy (q) by multiplying the mass of water formed (m) by the specific heat capacity of water (C) and the change in temperature (∆T). q = m * C * ∆T.
8. Calculate the number of moles of water (n) formed using the volume (v) of the acid and base mixture. n = v / 1000 * density of water / molar mass of water.
9. Finally, substitute the values of q and n into the formula ∆H = q / n to obtain the heat of neutralization (∆H).
It's important to note that the heat of neutralization can vary depending on the specific acid and base involved in the reaction.