Topic: Heat of neutralization (Read 12432 times)

ayumi · « **on:** February 28, 2006, 10:10:29 AM »

Phosphoric acid is a tribasic acid involving 3 stages of neutralization,so the heat of neutralization of each of these stages is same or have different value?If they are different, which stage will involve the highest heat of neutralization and which the lowest?

ayumi · « **Reply #1 on:** February 28, 2006, 10:18:33 AM »

The heat of neutralization for HCl with NaOH and the heat of neutralization for HNO₃ with KOH have same value or different?Why/

Borek · « **Reply #2 on:** February 28, 2006, 10:49:49 AM »

Quote from: ayumi on February 28, 2006, 10:18:33 AM

The heat of neutralization for HCl with NaOH and the heat of neutralization for HNO₃ with KOH have same value or different?Why/

Write net ionic reactions.

ayumi · « **Reply #3 on:** February 28, 2006, 08:16:04 PM »

Since they have same net ionic equation, so they have same value.Is it?

Borek · « **Reply #4 on:** March 01, 2006, 03:46:18 AM »

Simple answer: yes.

More advanced answer: there will be small difference. HNO₃ is weaker acid that it is commonly assumed. Thus heat of neutralization will be slightly changed by HNO₃ dissociation heat. But otherwise there will be no difference.

Topic: Heat of neutralization (Read 12432 times)

ayumi

Heat of neutralization

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