formic acid/sodium formate buffer solution can be prepared with 0.012 M each of formic acid (HCOOH) and sodium formate (NaCOOH). The Ka for formic acid is 1.8 x 10-4. The simultaneous equilibrium reaction is as shown below. Calculate the pH and the buffer capacity of the solution. HCOOH(aq) + H2O(l) ⇋ H3O+(aq) + HCOO-(aq)
A formic acid/sodium formate buffer solution can be prepared with 0.012 M each of formic acid (HCOOH) and sodium formate (NaCOOH). The Ka for formic acid is 1.8 x 10-4. The simultaneous equilibrium reaction is as shown below. Calculate the pH and the buffer capacity of the solution.
HCOOH(aq) + H2O(l) ⇋ H3O+(aq) + HCOO-(aq)
Suppose you wanted to increase the buffer capacity of the formic acid/sodium formate buffer solution above. What would you do? Explain your answer.
A solution is made by dissolving 15.4 g of HCl in 500 mL of water. Calculate the pH of the solution assuming the volume remains constant.
Step by step
Solved in 5 steps with 3 images