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Physiology Web Dilution Calculator

Dilution Equation:

\[ C_f = C_i \times \frac{V_i}{V_f} \]

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1. What is the Dilution Equation?

The dilution equation calculates the final concentration of a solution after dilution. It is based on the principle of conservation of mass, where the amount of solute remains constant before and after dilution.

2. How Does the Calculator Work?

The calculator uses the dilution equation:

\[ C_f = C_i \times \frac{V_i}{V_f} \]

Where:

Explanation: The equation demonstrates that the final concentration is proportional to the initial concentration and the ratio of initial to final volumes.

3. Importance of Dilution Calculation

Details: Accurate dilution calculations are essential in laboratory settings, pharmaceutical preparations, and various scientific experiments where precise concentrations are required.

4. Using the Calculator

Tips: Enter initial concentration in appropriate units, initial volume in liters, and final volume in liters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for concentration?
A: The calculator accepts any concentration units (mg/mL, M, %, etc.) as long as you maintain consistency between initial and final concentrations.

Q2: Can I use different volume units?
A: While the calculator uses liters, you can use any volume unit as long as both initial and final volumes use the same unit.

Q3: What if my final volume is smaller than initial volume?
A: This would represent concentration rather than dilution, and the equation still applies mathematically.

Q4: Does this equation work for serial dilutions?
A: For serial dilutions, you need to apply the equation sequentially for each dilution step.

Q5: Are there limitations to this equation?
A: This equation assumes complete mixing and no chemical reactions between solute and solvent during dilution.

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