V1 Dilution Calculator

Dilution Equation:

\[ V1 = \frac{C2 \times V2}{C1} \]

Concentration of Diluted Solution (C2):

mol/L

Volume of Diluted Solution (V2):

Concentration of Stock Solution (C1):

mol/L

Volume of Stock Solution Needed (V1):

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1. What is the Dilution Equation?

The dilution equation \( V1 = \frac{C2 \times V2}{C1} \) calculates the volume of stock solution (V1) needed to prepare a desired volume (V2) of a diluted solution with concentration C2 from a stock solution with concentration C1.

2. How Does the Calculator Work?

The calculator uses the dilution equation:

\[ V1 = \frac{C2 \times V2}{C1} \]

Where:

\( V1 \) — Volume of stock solution needed (L)
\( C2 \) — Concentration of diluted solution (mol/L)
\( V2 \) — Volume of diluted solution (L)
\( C1 \) — Concentration of stock solution (mol/L)

Explanation: The equation is derived from the principle of conservation of mass, where the amount of solute remains constant before and after dilution.

3. Importance of Dilution Calculations

Details: Accurate dilution calculations are essential in laboratory work, pharmaceutical preparations, and chemical manufacturing to ensure correct concentrations of solutions.

4. Using the Calculator

Tips: Enter all concentrations in mol/L and volumes in liters. All values must be positive numbers. The calculator will determine the volume of stock solution needed to achieve your desired dilution.

5. Frequently Asked Questions (FAQ)

Q1: Can I use different concentration units?
A: Yes, but all concentrations must be in the same units, and all volumes must be in the same units for the calculation to work correctly.

Q2: What if my stock concentration is less than my desired concentration?
A: The equation cannot create a more concentrated solution from a less concentrated one. You would need to start with a stock solution that's more concentrated than your desired final solution.

Q3: How precise should my measurements be?
A: Precision depends on your application. For analytical work, high precision is essential. For general purposes, 3-4 significant figures are usually sufficient.

Q4: Does temperature affect the calculation?
A: The calculation assumes volume is additive, which isn't strictly true for all solutions at all temperatures, but the effect is usually negligible for dilute solutions.

Q5: Can I use this for serial dilutions?
A: This calculates a single dilution step. For serial dilutions, you would need to perform this calculation for each step in the series.