If you wish a buffer to have a pH of 10.00, what is the desired [H3O+]? In the buffer from 6, you want to select a weak acid (one of the conjugate pair) with a Ka close to that value of [H3O+]. Explain why, using the expression for Ka. Every Ka is

1. If you wish a buffer to have a pH of 10.00, what is the desired [H₃O⁺]?

1. In the buffer from 6, you want to select a weak acid (one of the conjugate pair) with a Ka close to that value of [H₃O⁺]. Explain why, using the expression for Ka.

Every Ka is for a reaction   HA (aq) + H₂O (l) ⇄ H₃O⁺ (aq) + A^‒ (aq).

Write the chemical equilibrium for the acid  H₂CO₃ for which the equilibrium constant is the Ka of carbonic acid.

b) Write the expression for the Ka for the reaction of carbonic acid with water.

c) If the patient’s pH is 7.30, calculate [H₃O⁺]

How many mL of a 0.175M solution of NaOH (aq) will react with 150.0 mL of a 0.158 M H3PO4 (aq) solution?