Recent content by brendw2005

Yes, O know. the problem is: vapor pressure of NH at 25C is 8 Bar. Do we have adsorption at 15Bar? secondly. When an adsorption is performed at very small pressures (below 0.5Torr = 0.000666 Bar) ammonia will recover gradually the different adsorption sites. iun accordance with this, different...

Hi! Does anywone knows what happen with ammonia adsorption at pressures of 1-15 bar? thanks.:smile:

Hi ! Does anyone have this program, please : Lipase Titrimetric Analysis program?! Or could anyone tell me where I can find it? Thanks al lot!

So, I did it right! Thanks!

Thanks for replying! I used (H2PO4)- ↔H+ + (HPO4)2- Ka for this equation is 6.2*10-8, deci pKa = 7.21. Salt = (HPO4)2- Acid = (H2PO4)-

Hi everybody! I want to prepare 1000 ml of 0.1M phosphate buffer solution, pH = 7.0. I used Henderson Hasselbach's equation: pH = pka + log [salt]/[acid]. I obtained 0.062 moles of H2PO4- and 0.038 moles of HPO42-. Where I am wrong? Thanks a lot! B