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Why is KH2PO4 monobasic and K2HPO4 dibasic?

Updated: 8/9/2023
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123katkatkat

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8y ago

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The first tells you there is 2 hydrogens and one potassium The second tells you there is 1 hydrogen and 2 potassiums

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Wiki User

15y ago
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8y ago

The first is monobasic because it (maximally) can take up one proton (H+ ion), the second (dibasic) can take up two.

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8y ago

These are potassium salts of H3PO4. The monobasic has 1 hydrogen of the H3PO4 replaced and the dibasic has 2 hydrogen's replaced by potassium.

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Q: Why is KH2PO4 monobasic and K2HPO4 dibasic?
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Related questions

Is KH2PO4 an acid and K2HPO4 a neutral?

KH2PO4 is the acid, with a pH in the range of 4.4-4.7. K2HPO4 has a pH of 8.0.


Are potassium dihydrogen phosphate and potassium phosphate monobasic the same?

Yes.Monopotassium phosphate is also called potassium dihydrogen phosphate (KDP) or monobasic potassiumphosphate (MKP).Dihydrogen phosphate is H2PO4-, so it is a monopotassium salt.


Is sulphuric acid monobasic?

No. It is dibasic.


What is the difference between monobasic and dibasic acids?

A monobasic acid releases on H+ when dissolved in water. Whereas a dibasic acid will release 2.


Is dibasic acid more acidic than monobasic?

Yes


What is dibasic potassium phosphate buffer?

Dibasic potassium phosphate has the chemical formula is KH2PO4. The standardized solutions has a pH between 6 and 8.


What acid is used in fertilizer?

it contains Phosphoric Acid as well as its potassium salts K3PO4, K2HPO4, KH2PO4


Is na2hpo4 is dibasic?

No. Na2HPO4 is only a monobasic acid, corresponding to the remaining hydrogen atom. This is a very weak acid.


What is K2HP04 chemical name?

Dipotassium phosphate (K2HPO4) - also phosphoric acid, dipotassium salt; dipotassium hydrogen orthophosphate; potassium phosphate, dibasic - is a highly water-soluble salt which is often used as a fertilizer, food additive and buffering agent. It is a common source of phosphorus and potassium. The pH of a dipotassium phosphate solution is almost neutral. It is formed by the stoichiometric neutralization of phosphoric acid with potassium hydroxide: H3PO4 + 2 KOH → K2HPO4 + 2 H2O It reacts with phosphoric acid to generate monopotassium phosphate: K2HPO4 + H3PO4 → 2 KH2PO4


What do you mean by basicity of an acid?

The number of replacable hydrogen in an acid is termed as its basicity. eg. HCl is monobasic, H2SO4 is dibasic


How do you make 1m kh2po4 buffer?

Make Solution A by dissolving 174.18g of K2HPO4 in 1L of dH2O. Make solution B by dissolving 136g of KH2PO4 in 1L of dH2O. now mix solution A and B and finally adjust pH of your buffer.


How does K2HPO4 act as a buffer?

Yes