Of course, the mass remains the same for practical purposes. During the release of energy, a very tiny portion of mass is converted to energy, but that mass is extremely small, and cannot be determined by ordinary means.
Answer:
Ka = 1.14x10⁻⁸
Explanation:
First we <u>calculate [H⁺] from the pH</u>:
- [H⁺] =
For a monoprotic weak acid, the molar concentration of H⁺ of a solution can be expressed as:
Where C is the molar concentration of the weak acid solution.
- 6.31x10⁻⁵ M =
The solution is buffered with a weak acid and it's conjugate base. Since NaOH is a base, you can use a weak acid as it's buffer.