Which of the following statements is true concerning the titration of a weak mon

Question

Which of the following statements is true concerning the titration of a weak monoprotic acid with a strong base? At the equivalence point, the solution has excess moles of strong base. At the equivalence point, the solution is acidic. At the equivalence point, the solution has excess moles of weak acid. At the equivalence point, the solution is composed of the conjugate base of the weak acid. At the equivalence point, the pH is 7. Which of the following solutions would have the highest pH? 0.10 M Na_3PO_4 0.10 M Na_2HPO_4 0.10 M NaH_2PO_4 0.10 M H_3PO_4 0.10 M NaCI What is the correct solubility product expression for Th(IO_3)_4? K_sp = [Th^4+][4IO_3}^4 K_sp = [Th^4+][IO_3] K_sp = [Th][IO_3]^4 K_sp = [Th^4+][IO_3]^4 K_sp = [Th^4+][IO_3]

Explanation / Answer

35 D) because HA -> H+ + A- Ka <1 the equivalent point is a equilibrium

36 D) because the H3PO4 is a strong acid whit Ka>>>>1

37 C) because the stequimetric coficient are the valuo of the potencia in the equaction of Kps

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