[iheartsludge]

Having trouble with Henry's law...

I've got a value for Henry's law constant h = ~47mol/kg*bar connected to the equation h = c/p, c = conc in liquid (mol/kg), p = part. press. (bar)

This is data for nitrous acid in sulfuric acid solution.

So, at 1 bar, the liquid conc of HNO2 = 47mol/kg? That comes to 2209g/kg, or 2.2kg/kgsolvent.

Does this make sense? I know nitrous acid is very unstable and rapidly decomposes to NO and NO2, but I am not understand these liquid concentration values.

Thanks.

[Lukec]

If 2.2kg/kgsol  means that you have  68.75% HNO2, It makes sense.  I think its mols of HNO2 per kg of solvent. And remember henrys law stands for ideal mixtures.

[SABRY]

If the Henry's constant figure is correct then why not?