Calculate The Ph Of The Following Solutions Of Hno3

Introduction & Importance

Calculating the pH of HNO3 (Nitric Acid) solutions is crucial in various industries, including chemistry, pharmaceuticals, and environmental science. Understanding the pH helps ensure safety, optimize processes, and maintain product quality.

How to Use This Calculator

1. Enter the concentration of HNO3 in moles per liter (M).
2. Enter the volume of HNO3 in liters (L).
3. Click “Calculate pH”.

Formula & Methodology

The pH of an HNO3 solution can be calculated using the Henderson-Hasselbalch equation:

pH = pKa + log([A-] / [HA])

Where pKa is the acid dissociation constant of HNO3 (3.37 at 25°C), [A-] is the concentration of the conjugate base (NO3-), and [HA] is the concentration of HNO3.

Real-World Examples

Data & Statistics

pH Levels of Common Substances

Substance	pH
Pure Water	7
HNO3 (1 M)	1

Expert Tips

• Always wear appropriate personal protective equipment when handling HNO3.
• Store HNO3 in a cool, dry, well-ventilated area away from incompatible substances.
• Dispose of HNO3 and its containers in accordance with local, state, and federal regulations.

Interactive FAQ

What is the pKa of HNO3?

The pKa of HNO3 is 3.37 at 25°C.

EPA’s Nitric Acid Information

EPA’s pH Definition

Henderson-Hasselbalch Equation