Posted 29 January 2009 - 05:06 AM
Posted 11 February 2009 - 07:55 AM
Hi, i must prepare 50 mM Kpi pH 7,4. How? what I must weigth and how to reach the rigth pH?
You may prepare 500mM (10x) KH2PO4 or K2HPO4, pH to 7.4 with KOH.