Hello~
For my AP chemistry class, we did a lab practical where we used KH2PO4 and K2HPO4. That question that I need answered is, "why are these compounds labeled monobasic and dibasic"?
Is it simply because of the amount of hydrogen atoms in its moelcules? So would the KH2PO4 would be the dibasic while the K2HPO4 would be the monobasic? Is that all I need to say to completely answer the question?
Thank you very much in advance!
2007-09-03 09:14:45 · 2 answers · asked by she*wished 2 in Science & Mathematics ➔ Chemistry
Yes. KH2PO4 has two moles of H+ ions to be neutralised per every mole of acid whereas K2HPO4 has only one.
In general the basicity of any acid is the number of moles of H+ ions present in one mole of acid.
A tribasic acid is H3PO4.
2007-09-03 09:21:49 · answer #1 · answered by adrian r 2 · 1⤊ 0⤋
A Monobasic Acid has one acidic hydrogen atoms in its molecules which can be ionised. Potassium mono-hydro phosphatee, K2HPO4, is a monobasic acid, because it contains one hydrogen atom which ionise in aqueous solution to become Hydrogen Ions, H(+).
A Dibasic Acid has two acidic hydrogen atoms in its molecules which can be ionised. Potassium di-hydro phosphatee, KH2PO4, is a dibasic acid, because it contains two hydrogens atoms which ionise in aqueous solution to become Hydrogen Ions, H(+).
2007-09-03 16:27:13 · answer #2 · answered by lenpol7 7 · 0⤊ 0⤋