Re:buffer solution H3PO4 and HPO4-- « Reply #8 on: May 10, 2005, 08:12:03 AM » May be at pH 3.95 a buffer H3PO4/NaH2PO4 exists that contain 0.2 M H3PO4 and we should increase pH to 7.30 by adding Na2HPO4, but this is only my guess Logged AWKAlbert Lonely Wander...
wondering if somebody could help explain to me how does the reaction of nacl + H3PO4 form nah2po4 and hcl gas? i thought h3po4 was a weaker acid than hcl, so how can it form a stronger acid? and does it depend on the strength of h3po4 used?