Hydrochloric acid dilution calculator

How to Use the Calculator

1. Enter the concentration of the concentrated hydrochloric acid (typically 12 M or higher).
2. Enter the desired concentration of the final hydrochloric acid solution.
3. Enter the desired final volume of the hydrochloric acid solution.
4. Click the "Calculate" button to determine the volume of concentrated HCl needed and the volume of water required.
5. The calculator uses the formula C₁V₁ = C₂V₂, where C₁ is the initial concentration, V₁ is the initial volume, C₂ is the final concentration, and V₂ is the final volume.

Example

If you need to prepare 1 liter of 1 M hydrochloric acid solution from a 12 M concentrated solution:

• Initial Concentration (C₁): 12 M
• Desired Concentration (C₂): 1 M
• Desired Volume (V₂): 1 L
• Volume of Concentrated HCl needed (V₁): (1 M * 1 L) / 12 M = 0.0833 L (83.3 mL)
• Volume of Water needed: 1 L - 0.0833 L = 0.9167 L (916.7 mL)

Safety Precautions

Hydrochloric acid is a corrosive and hazardous chemical. Always wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat when handling hydrochloric acid. Perform dilutions in a well-ventilated area or under a fume hood. Always add acid to water slowly, never water to acid, to prevent splashing and excessive heat generation.