Home Back

Physiology Web Dilution Calculator

Dilution Equation:

\[ C_2 = C_1 \times \frac{V_1}{V_2} \]

mol/L
L
L

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is the Dilution Equation?

The dilution equation (C1V1 = C2V2) describes how the concentration of a solution changes when it is diluted. This principle is fundamental in physiology and chemistry for preparing solutions of desired concentrations.

2. How Does the Calculator Work?

The calculator uses the dilution equation:

\[ C_2 = C_1 \times \frac{V_1}{V_2} \]

Where:

Explanation: The equation shows that concentration is inversely proportional to volume when the amount of solute remains constant.

3. Importance of Dilution Calculations

Details: Accurate dilution calculations are essential for preparing medications, laboratory reagents, and physiological solutions at correct concentrations for experiments and treatments.

4. Using the Calculator

Tips: Enter all values in consistent units (mol/L for concentration, liters for volume). All values must be positive numbers. The calculator will compute the final concentration after dilution.

5. Frequently Asked Questions (FAQ)

Q1: Can I use different units?
A: Yes, but all volumes must be in the same units (e.g., all in mL or all in L), and concentrations must match the volume units.

Q2: What if my final volume is less than initial volume?
A: This would represent concentration rather than dilution, but the equation still holds. The concentration will increase proportionally.

Q3: Does this account for mixing non-ideal solutions?
A: No, this assumes ideal behavior where volumes are perfectly additive. For precise work with non-ideal solutions, more complex calculations may be needed.

Q4: Can I use this for serial dilutions?
A: Yes, but you'll need to apply the equation sequentially for each dilution step in the series.

Q5: How precise are the results?
A: The calculator provides results to 4 decimal places, but actual precision depends on your measurement accuracy.

Physiology Web Dilution Calculator© - All Rights Reserved 2025