Calculate the pH of the solution that results when 33.82 mL of
0.142 M HBr are mixed with 43.37 mL of 0.147 M NaCN.
Ka for HCN = 6.3x10-10
Calculate the pH of the solution that results when 33.82 mL of 0.142 M HBr are...
4. An aqueous buffer solution if made from 150.0 mL of a 1.50 M HCN solution and 200.0 mL of a 1.00 M NaCN solution. The Ka for HCN is 4.90 x 10-10. a. Calculate the initial pH of this buffer solution. b. Calculate the pH after adding 100.0 mL of 0.800 M HBr to the HCN/NaCN buffer. c. Calculate the pH after adding 100.0 mL of 0.800 M KOH to the HCN/NaCN buffer.
Calculate the pH of a buffer solution when 65.0 mL of 0.215 M weak acid (HA) is mixed with 25.0 mL of 0.215 M NaOH. The Ka for HA is 6.3x10-5.
Calculate the hydronium ion concentration and the pH of the solution that results when 22.6 mL of 0.060 M acetic acid,CH3CO2H (Ka= 1.8 x 10^-5), is mixed with 1.4 mL of 0.17 M NaOH . Hydronium ion concentration = pH =
Calculate the pH when 30.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH3NH2 (Kb = 4.4 x 10-4). Calculate the pH when 90.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH3NH2 (Kb = 4.4 x 10-4).
Calculate the hydronium ion concentration and the pH of the solution that results when 10.7 mL of 0.26 M acetic acid, CH3CO2H (Ka= 1.8x10-5), is mixed with 4.9 mL of 0.090 M NaOH . Hydronium ion concentration = M pH=
Calculate the following: a. The pH of a 500.0 mL buffer solution containing 0.75 M HCN (Ka = 6.2 x 10^-10) and 0.55 M NaCN b. The pH of the above buffer after the addition of 100.0 mL of 1.0 M NaOH. c. The pH of the buffer if 100.0 mL of 1.0 M HCl was added to the solution in part a.
a) Calculate the pH for a 1.63 M solution of HCN which also contains 1.75 M NaCN. Ka = 4.9 x 10-10 for HCN b) Calculate the pH after 65.0 mL of 1.47 M HCl is added to 850.0 mL of the solution in part a) above.
Calculate the pH when 90.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH₃NH₂ (Kb = 4.4 × 10⁻⁴).
Calculate the pH when 30.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH₃NH₂ (Kb = 4.4 × 10⁻⁴).
Calculate the pH when 30.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH₃NH₂ (Kb = 4.4 × 10⁻⁴).