0
acidityis measured by pH which means the power of Hydrogen. As H3PO4 has more hydrogen, it is more acidic and can donate more protons than H2PO4 and HPO4. Therefore, more hydrogen concentration and a lower pH value.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoNitrogen is a highly electronegative element. In HNO_3 it is in its highest oxidation state, +5, and thus is more readily reduced than phosphorus, which forms stable P-O bonds.
Add your answer:
Earn +20 pts
What compound is more acidic Mn2O7 or MnO2?
Mn2O7is more acidic.
Why imides are more acidic than amides?
acidic proton
Is pH 9 more acidic than pH 4?
no. the lower the pH the more acidic
Which one is more acidic milk of magnesia or household amonia?
Neither is acidic, both are basic. But milk of magnesia is less basic and therefore more acidic.
What is solution of pH 4 is 10 times more acidic than one of pH 5 and it is 10 times more acidic than a solution of pH 6 how many times more acidic is the solution of pH for than the one of pH 6?
No, a pH of 5 is ten times more acidic than a pH o6.
Conjugate acid of HPO4 2?
H3PO4==============Phosphoric acid.
How do prepare phosphate buffer pH 4.5?
There is NO good buffer with phosphate for pH = 4.5, because pKa-value's differ too much from 4.5: pKa = 2.13 and 7.21 for H3PO4 and H2PO4- respectively.A good alternative would be Acetic acid / Acetate in molar ratio of about 2 : 1, because pK(acetic acid) = 4.77 .More precisely you can use the formula, based on the Henderson-Hasselbalch equation:log[acid]/[conjug.base] = = 4.77 - 4.5 = 0.27or[acid]/[conjug.base] = 10(pKacid -pHbuffer) = 100.27 = inv.log(0.27) = 1.82Doing the same for a H3PO4 / H2PO4- buffer, this results in[H3PO4/H2PO4-] = 10(pKacid -pHbuffer) = 10(2.13-4.5) = inv.log(-2.37) = 4.3*10-3or for H2PO4-/HPO42- buffer, this results in [H2PO4-/HPO42-] = 10(7.21-4.5) = 102.71 = inv.log(2.71) = 5.1*102Both ratio's are far beyond values for optimal buffercapacities: 0.1 < ratio < 10
What more acidic of two solutions has?
The more acidic of two acidic solutions has more H+ ions per liter.
What compound is more acidic Mn2O7 or MnO2?
Mn2O7is more acidic.
Chemical name of phosphoric acid?
The formula* for phosphoric acid is H3PO4.*Compounds do not have "symbols" in the chemical sense; only atoms do. The formula itself, of course, is a symbol for the compound itself in a more general meaning of "symbol".
What is more acidic lemon juice or acid rain?
Lemon Juice is more acidic.
What is more acidic ph of 1 or 8?
whith PH, lower numbers are more acidic. so 1 is more acidic than 8.
What is the name for HPO42?
HPO4 does not exist. HPO42- would be the dibasic form of phosphoric acid and be the hydrogen phosphate ion. H3PO4 also exists and is phophoric acid. So if two moles of NaOH were reacted with phosphoric acid 2Na+ HPO42- would be formed disodium hydrogen phosphate.
What is a poly protic acid?
A polyprotic acid can (in a multi-step reaction) donate more than one proton per molecule of acid.E.g. phosphoric acid can do 'the trick' three times:H3PO4 --> H+ + H2PO4-H2PO4- --> H+ + HPO42-HPO42- --> H+ + PO43-
What is a more acidic pH?
3,2,1 and zero, closer to the zero is more acidic solution.
Hemoglobin has a tendency to release oxygen where?
Ph is more acidic.
Which is more acidic nahco3 or na2co3?
na2co3 is more basic nahco3 is more acidic but both are bases.
