Concentration Calculator

How to Use the Concentration Calculator

This guide will walk you through the steps of using the Concentration Calculator to determine the final concentration of a solution after a change in volume. Follow the instructions carefully to ensure accurate results.

Step 1: Enter Initial Concentration

Begin by entering the initial concentration of the solution. This should be a numerical value representing the concentration before any dilution or volume change. The value must be greater than or equal to 0.0001 based on the calculator’s settings. Use the placeholder as your guide: Enter initial concentration.

Step 2: Enter Initial Volume

Input the initial volume of the solution. Like the initial concentration, this value must also be a number not less than 0.0001. Follow the placeholder: Enter initial volume.

Step 3: Enter Final Volume

Next, provide the final volume of the solution after dilution or change. Ensure this numerical value is at least 0.0001, using the prompt: Enter final volume.

Step 4: Select Concentration Units

Choose the appropriate concentration units from the following options:

• mol/L (M)
• g/L
• mg/L
• ppm

This step is necessary for the calculator to correctly interpret the initial and final concentrations.

Step 5: Select Volume Units

Decide on the units for the volume:

• Liters (L)
• Milliliters (mL)

Confirm that the volume units are consistent with the measurements you have provided.

Step 6: Calculate and View Results

Once all inputs are complete, the calculator will automatically compute the output. The results will be displayed as follows:

• Final Concentration (C₂): This is calculated using the formula
  (initialConcentration * initialVolume) / finalVolume and expressed with four decimal places.
• Dilution Factor: The factor is derived from finalVolume / initialVolume, rounded to two decimal places, and expressed with an “x” suffix.
• Dilution Ratio: This is a simple ratio of the initial volume to the final volume, formatted to show no decimals.

Review the results to ensure they meet your requirements and calculations. Use these metrics to better understand the changes in concentration due to volume adjustment.