Question

TWO PART QUESTION PLS HELP

A. Write the equations that represent the first and second ionization steps for seleNIC acid (H₂SeO4) in water.

(Use H₃O⁺ instead of H⁺.)

First ionization step:

(aq)(s)(l)(g)	+	H2O(l)	---><---	(aq)(s)(l)(g)	+	(aq)(s)(l)(g)

Second ionization step:

(aq)(s)(l)(g)	+	H2O(l)	---><----	(aq)(s)(l)(g)	+	(aq)(s)(l)(g)

PART B

Use the References to access important values if needed for this question.

The value of K_a1 and K_a2 for sulfurous acid are 1.70×10^-2and 6.40×10^-8, respectively.

(Use H₃O⁺ instead of H⁺.)

Write the equation for the reaction that goes with K_a1:

(aq)(s)(l)(g)	+	(aq)(s)(l)(g)	---><---	(aq)(s)(l)(g)	+	(aq)(s)(l)(g)

Write the equation for the reaction that goes with K_a2:

(aq)(s)(l)(g)	+	(aq)(s)(l)(g)	---><---	(aq)(s)(l)(g)	+	(aq)(s)(l)(g)

Answer 1

PARTA

First ionization step

H₂SeO₄(aq) + H₂O(l) <------> HSeO₄^-(aq) + H₃O⁺(aq)

Second ionization step

HSeO₄^-(aq) + H₂O(l) <-------> SeO₄^2-(aq) + H₃O⁺(aq)

PART B

First ionization (Ka1)

H₂SO₃(aq) + H₂O(l) <-------> HSO^{​​​​​​}₃^-(aq) + H₃O⁺(aq)   

second ionization (Ka2)

HSO₃^-(aq) + H₂O(l) <-------> SO₃^2-(aq) + H₃O⁺(aq)

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