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For Which of the Following Equilibria Does Kc Correspond to the Acid-Dissociation

Question 8

Multiple Choice

For which of the following equilibria does Kc correspond to the acid-dissociation constant,Ka,of H2PO4-?


A) H2PO4-(aq) + H3O+(aq) For which of the following equilibria does K<sub>c</sub> correspond to the acid-dissociation constant,K<sub>a</sub>,of H<sub>2</sub>PO<sub>4</sub><sup>-</sup>? A) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>3</sub>O<sup>+</sup>(aq) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) B) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>PO<sub>4</sub>(aq) + OH<sup>-</sup>(aq) C) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + HPO<sub>4</sub><sup>2-</sup>(aq) D) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) E) HPO<sub>4</sub><sup>2-</sup>(aq) + H<sub>2</sub>O(l) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + OH<sup>-</sup>(aq) H3PO4(aq) + H2O(l)
B) H2PO4-(aq) + H2O(l) For which of the following equilibria does K<sub>c</sub> correspond to the acid-dissociation constant,K<sub>a</sub>,of H<sub>2</sub>PO<sub>4</sub><sup>-</sup>? A) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>3</sub>O<sup>+</sup>(aq) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) B) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>PO<sub>4</sub>(aq) + OH<sup>-</sup>(aq) C) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + HPO<sub>4</sub><sup>2-</sup>(aq) D) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) E) HPO<sub>4</sub><sup>2-</sup>(aq) + H<sub>2</sub>O(l) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + OH<sup>-</sup>(aq) H3PO4(aq) + OH-(aq)
C) H2PO4-(aq) + H2O(l) For which of the following equilibria does K<sub>c</sub> correspond to the acid-dissociation constant,K<sub>a</sub>,of H<sub>2</sub>PO<sub>4</sub><sup>-</sup>? A) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>3</sub>O<sup>+</sup>(aq) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) B) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>PO<sub>4</sub>(aq) + OH<sup>-</sup>(aq) C) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + HPO<sub>4</sub><sup>2-</sup>(aq) D) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) E) HPO<sub>4</sub><sup>2-</sup>(aq) + H<sub>2</sub>O(l) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + OH<sup>-</sup>(aq) H3O+(aq) + HPO42-(aq)
D) H3PO4(aq) + H2O(l) For which of the following equilibria does K<sub>c</sub> correspond to the acid-dissociation constant,K<sub>a</sub>,of H<sub>2</sub>PO<sub>4</sub><sup>-</sup>? A) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>3</sub>O<sup>+</sup>(aq) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) B) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>PO<sub>4</sub>(aq) + OH<sup>-</sup>(aq) C) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + HPO<sub>4</sub><sup>2-</sup>(aq) D) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) E) HPO<sub>4</sub><sup>2-</sup>(aq) + H<sub>2</sub>O(l) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + OH<sup>-</sup>(aq) H3O+(aq) + H2PO4-(aq)
E) HPO42-(aq) + H2O(l) For which of the following equilibria does K<sub>c</sub> correspond to the acid-dissociation constant,K<sub>a</sub>,of H<sub>2</sub>PO<sub>4</sub><sup>-</sup>? A) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>3</sub>O<sup>+</sup>(aq) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) B) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>PO<sub>4</sub>(aq) + OH<sup>-</sup>(aq) C) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + HPO<sub>4</sub><sup>2-</sup>(aq) D) H<sub>3</sub>PO<sub>4</sub>(aq) + H<sub>2</sub>O(l) H<sub>3</sub>O<sup>+</sup>(aq) + H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) E) HPO<sub>4</sub><sup>2-</sup>(aq) + H<sub>2</sub>O(l) H<sub>2</sub>PO<sub>4</sub><sup>-</sup>(aq) + OH<sup>-</sup>(aq) H2PO4-(aq) + OH-(aq)

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