A 15.0-mL sample of 0.250 M ammonia is titrated with a 0.120 M HCl solution. What is the pH after 14.5 mL of acid is added? The Ka of ammonium ion is 5.8 × 10-10

In a titration of 25.0 mL of 0.10 M phosphoric acid (a triprotic weak acid) with 0.20 M NaOH, what species are present after the addition of 20.0 mL of NaOH?What species would be present if we only added 10 mL NaOH?

How many moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of HF to make a buffer with a pH of 3.40? (Ka for HF is 6.8 × 10⁻⁴)

7. A solution was made by mixing 50.0 mL of 0.750 M HCN with 25.0 mL of water. What is the pH of this solution? The pka of HCN = 9.31. 8. One of the compounds featured on the TV series "Breaking Bad" was hydrofluoric acid (HF), pKa = 3.14. a) A solution of HF has a pH = 1.77. What was the initial [HF] for this solution in mol L-1? b) What is the equilibrium concentration of F in this solution in mol L-1? c) What is the percent ionization of HF in this solution?

A 25.0-mL sample of 0.250 M HA is titrated with a 0.150 M LiOH solution. What is the pH after 10.1 mL of base is added? The Ka of HA is 2.2 × 10-6.

a saturated solution of M(OH)2 is prepared. 15 ml of the saturated solution was titrated with a .055 M HCL solution. Examination of the pH titration curve indicated that it took 8.15 ml of the HCL solution to reach the equivalence point. What is the [OH-] in the saturated solution

HCN is a weak acid with a Ka = 4.90 x 10-10. A 50.00 mL sample of this HCN solution (0.250 M) is titrated with 0.500 M NAOH. What is the pH at the equivalence point?

100. mL of 0.200 M HCl is titrated with 0.250 M NaOH. What is the pH of the solution after 50.0 mL of base has been added? What is the pH of the solution at the equivalence point?

A 25 mL sample of 0.150 M monoprotic organic acid is titrated with aqueous sodium hydroxide. After 9.87 mL of 0.150 M NaOH is added, what is the pH of the solution? The Ka of the acid is 3.93 * 10^-5.