17. 18. Determine [H3O+] and percent ionization of a 0.700 M HCIO solution. Ka of HCIO is 2.9 × 10-8, If the pKa of HCHO

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17 18 Determine H3o And Percent Ionization Of A 0 700 M Hcio Solution Ka Of Hcio Is 2 9 10 8 If The Pka Of Hcho 1 (28.86 KiB) Viewed 42 times

17. 18. Determine [H3O+] and percent ionization of a 0.700 M HCIO solution. Ka of HCIO is 2.9 × 10-8, If the pKa of HCHO2 is 3.91 and the pH of an HCHO2/NaCHO2 solution is 3.74, which of the following is true? A) [HCHO2] <[NaCHO₂] B) [HCHO2] = [NaCHO₂] C) [HCHO2] > [NaCHO₂] D) It is not possible to make a buffer of this pH from HCHO2 and NaCHO2. 19. 20. If a chemist wishes to prepare a buffer that will be effective at a pH of 5.00 at 25 °C, the best choice would be an acid component with a Ka equal to A) 9.10 x 10-2, B) 9.10 x 10-4. C) 9.10 x 10-6. D) 9.10 × 10-8. E) 9.10 x 10-10, Of the molecules listed, which is not a Lewis acid? A) NH B) H* C) PCI D) BF3 E) All molecules are Lewis acids