Which of the following is a conjugate acid/ base pair? A) H3PO4, PO43- B) H2PO4 ,...
Which of the following is not a conjugate acid-base pair? A H20 and H30+ B. H3PO4 and H2PO4 C. H3PO4 and HPO42- D. HPO42- and PO43 E. H2PO4 and HPO42-
18. Which of the following is the conjugate base of the dihydrogenphosphate ion, H2PO4-? A) H3PO4 B) NaH2PO4 C) OH- D) HPO42- E) PO43-
Which equilibrium constant expression represents the first ionization of H3PO4 in water? A) [H+][H2PO4-]/[H3PO4] B) [H+][PO43-]/[HPO42-] C) [H+][PO42-]/[H2PO4-] D) [H+][H3PO43-]/[H3PO4] E) [H+][H3PO4]/[H3PO4]
Which of the following is a monoprotic acid? Group of answer choices Na3PO4 H3PO4 H2PO4– HPO42– PO43–
Which type of phosphate should be used as the conjugate acid to generate a buffer with a pH of 7.0? a. H3PO4 b. H2PO4- c. HPO42- d. PO43-
All of the following are acid-base conjugate pairs EXCEPT A. HPO42-, PO43- B. H3O+, OH- C. CH3COOH, CH3COO- D. NH4+, NH3 E. H2O, H3O+
Question 38 (1 point) Which of the following is the conjugate acid of HPO42- H3PO4 H2P04 PO43- H30*
15 5 points Which ion below is the conjugate base of HPO42-? o H2P04 O PO43- O HPO42- O H3PO4 H3O+ Previous
Question 11 (2 points) D Which of the following does not represent a conjugate acid-base pair? HCO3/CO32 H3PO4/HPO42 OH/O-2 NH4 /NH3 Save Question 12 (2 points) D Consider the weak acid HCO3 whose pKa -10.32, which form will pre
Which of the following is NOT a conjugate acid-base pair? Which of the following is NOT a conjugate acid-base pair? (A).H2SO3/HSO3- (B).H3O+/OH- (C).NH4+/NH3 (D).C2H3O2-/HC2H3O2 (E).All of the above are conjugate acid-base pairs.