10 M Sulfuric Acid what's pH

[DocDrakeRamoray]

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[amikhchi]

I would think since sulphuric acid is a strong acid, it would dissociate completely, therefore the [H+] = 10M so the -log of that, would be -1, that's VERY acidic...

 

[sleepy425]

-1

very simple, strong acid (and it's not concentrated sulfuric acid, which doesn't have very much water so it doesn't ionize very much and is kind of weird) so pH is just -log[H+] and since H2SO4 undergoes first ionization completely in water, concentration of H+ is 10 M. So -log(10M) is -1.