Question

H3PO4 + 3NaOH → Na3PO4 + 3H2O What is the Basicity of H3PO4 in this reaction

Answer 1

Answer:

Explanation:

H3PO4 is also a weak acid. It reacts with strong base, NaOH by the following way:

H3PO4+ NaOH = NaH2PO4 + H2O

Here,basicity of H3PO4 is 1

H3PO4 + 2NaOH = Na2HPO4 + 2H2O

Here,the basicity of H3PO4 is 2

H3PO4+ 3NaOH = Na3PO4 + 3H2O

Here,the basicity of H3PO4 is 3

Answer 2

Answer:

3

Explanation:

As it have 3 -OH bond and it reacts with 3NaOH

H3PO4 - O

II

P

/ I \

OH OH OH

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