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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Jenzer on September 22, 2021, 07:01:21 PM

Title: Neutralisation and Na2SO4
Post by: Jenzer on September 22, 2021, 07:01:21 PM

For the neutralisation equation:

H2SO4 + 2NaOH → Na2SO4 + 2H2O

I don't understand where the "2" in the salt product for Na has come from?

If you could point out what topic I need to study for this it'd be much appreciated.

Thank you

Title: Re: Neutralisation and Na2SO4
Post by: Borek on September 23, 2021, 02:54:24 AM

So basically you are asking why given compound has a formula that it has?

Why do you accept H₂SO₄, but Na₂SO₄ raises a question?

Title: Re: Neutralisation and Na2SO4
Post by: Meter on September 23, 2021, 08:00:04 AM

The "Na₂" comes from the 2 moles of NaOH.

Na₂SO₄ is somewhat soluble in aqueous solutions, so you would have an equilibrium of the solid salt and the dissolved free ions of the salt.