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hammer [34]
3 years ago
15

Que representa en la reacción química Na2SO4(s)+H2O(1)=

Chemistry
1 answer:
mars1129 [50]3 years ago
7 0

Answer: The given reaction is a double displacement reaction.

Explanation:

A chemical reaction equation in which both positive and negative ions of two different reactants are exchanged then it is called a double displacement reaction.

For example, Na_{2}SO_{4} + H_{2}O \rightarrow H_{2}SO_{4} + Na_{2}O

Here, hydrogen ions of H_{2}O are replaced by the sodium ions of Na_{2}SO_{4}. Also, sulfate ion of Na_{2}SO_{4} are replaced by oxygen ion of H_{2}O.

Thus, we can conclude that the given reaction is a double displacement reaction.

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Phosphoric acid has 3 pka values, which are 2.1, 6.9, and 12.4. draw the protonated form of phosphoric acid associated with the
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As mentioned above, phosphoric acid has 3 pKa values, and after 3 ionization it gives 3 types of ions at different pKa values:

H₃PO₄(aq) + H₂O(l) ⇌ H₃O⁺(aq) + H₂PO₄⁻ (aq)         pKₐ₁ 
<span>

</span>H₂PO₄⁻(aq) + H₂O(l) ⇌ H₃O⁺(aq) + HPO₄²⁻ (aq)       pKₐ₂


HPO₄²⁻(aq) + H₂O(l) ⇌ H₃O⁺(aq) + PO₄³⁻ (aq)          pKₐ₃ 


At the highest pKa value (12.4) of phosphoric acid, the last OH group will lose its hydrogen. On the picture I attached, it is shown required protonated form of phosphoric acid before reaction whose pKa value is 12.4.


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