1. What is Concentration Ratio?

The concentration ratio is a dimensionless quantity that compares the concentration of two solutions. It's commonly used in chemistry, biology, and environmental science to express relative concentrations of substances in different solutions or at different times.

2. How Does the Calculator Work?

The calculator uses the simple ratio formula:

Where:

• \( C_1 \) — Concentration of first solution (in mol/L or g/L)
• \( C_2 \) — Concentration of second solution (in mol/L or g/L)

Note: Both concentrations must be in the same units (either both in mol/L or both in g/L) for the ratio to be meaningful.

3. Importance of Concentration Ratio

Applications: Concentration ratios are used in dilution calculations, reaction stoichiometry, comparing sample concentrations to standards, and in environmental monitoring to track pollutant levels.

4. Using the Calculator

Instructions: Enter both concentration values in the same units (select either mol/L or g/L for both). The calculator will compute the ratio C1/C2.

Example: If C1 = 2 mol/L and C2 = 0.5 mol/L, the ratio is 4, meaning the first solution is 4 times more concentrated than the second.

5. Frequently Asked Questions (FAQ)

Q1: Can I mix different units (mol/L and g/L)?
A: No, both concentrations must be in the same units for the ratio to be meaningful.

Q2: What does a ratio less than 1 mean?
A: A ratio < 1 indicates that C1 is less concentrated than C2.

Q3: How precise should my concentration measurements be?
A: Use as many significant figures as your measurement device allows for accurate ratio calculation.

Q4: Can this be used for any concentration units?
A: Yes, as long as both concentrations are in the same units (e.g., both in mg/mL, both in % w/v, etc.).

Q5: What's the difference between ratio and dilution factor?
A: The ratio compares concentrations directly, while dilution factor typically refers to the ratio of final volume to aliquot volume in a dilution.