Question
molar heat of neutralization NaOH and HCl
Answers
GPT-4o mini
The molar heat of neutralization is the heat released when one mole of an acid completely neutralizes one mole of a base. For the neutralization reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl), the balanced chemical equation is:
\[
\text{NaOH}(aq) + \text{HCl}(aq) \rightarrow \text{NaCl}(aq) + \text{H}_2\text{O}(l)
\]
In this reaction, one mole of NaOH reacts with one mole of HCl to produce one mole of sodium chloride (NaCl) and one mole of water (H2O).
The molar heat of neutralization for strong acids and strong bases (like HCl and NaOH) is approximately **-57 kJ/mol** under standard conditions. The negative sign indicates that the reaction is exothermic, meaning it releases heat.
It's worth noting that the exact value may vary slightly based on concentration, temperature, and specific experimental conditions. However, for most purposes, you can use -57 kJ/mol for the heat of neutralization of NaOH with HCl.
\[
\text{NaOH}(aq) + \text{HCl}(aq) \rightarrow \text{NaCl}(aq) + \text{H}_2\text{O}(l)
\]
In this reaction, one mole of NaOH reacts with one mole of HCl to produce one mole of sodium chloride (NaCl) and one mole of water (H2O).
The molar heat of neutralization for strong acids and strong bases (like HCl and NaOH) is approximately **-57 kJ/mol** under standard conditions. The negative sign indicates that the reaction is exothermic, meaning it releases heat.
It's worth noting that the exact value may vary slightly based on concentration, temperature, and specific experimental conditions. However, for most purposes, you can use -57 kJ/mol for the heat of neutralization of NaOH with HCl.