Calculate H+ Ph Poh Nd Oh for 0.0060 M Hno3

Introduction

When nitric acid (HNO₃) dissolves in water, it dissociates completely into H⁺ and NO₃⁻ ions. The concentration of H⁺ ions determines the pH of the solution, which can be calculated using the pH formula:

The pOH is calculated as:

For this calculation, we assume the solution is at 25°C and that the concentration of NH₄⁺ and OH⁻ ions is negligible (0 M) since HNO₃ is a strong acid.

Calculation Method

To calculate the properties of a 0.0060 M HNO₃ solution:

1. Enter the concentration of HNO₃ in molarity (M).
2. Click "Calculate" to compute the values.
3. Review the results and interpretation.

Worked Example

Let's calculate the properties of a 0.0060 M HNO₃ solution:

1. Since HNO₃ is a strong acid, [H⁺] = [HNO₃] = 0.0060 M.
2. Calculate pH: pH = -log(0.0060) ≈ 2.223.
3. Calculate pOH: pOH = 14 - 2.223 ≈ 11.777.
4. [NH₄⁺] and [OH⁻] are negligible (0 M) in this case.

The solution is acidic with a pH of approximately 2.22.

Interpreting Results

The results show:

• H⁺ concentration: The concentration of hydrogen ions.
• pH: The acidity of the solution (lower pH = more acidic).
• pOH: The basicity of the solution (higher pOH = less basic).
• NH₄⁺ concentration: The concentration of ammonium ions (0 M in this case).
• OH⁻ concentration: The concentration of hydroxide ions (0 M in this case).

A pH below 7 indicates an acidic solution, which is expected for HNO₃.