1. What is Concentration in Biology?

Concentration in biology refers to the amount of a substance (solute) dissolved in a given volume of solution. It's a fundamental concept in preparing solutions, conducting experiments, and understanding biological processes.

2. How Does the Calculator Work?

The calculator uses the concentration formula:

Where:

• \( C \) — Concentration (g/L)
• \( m \) — Mass of solute (g)
• \( V \) — Volume of solution (L)

Explanation: The formula calculates how much solute is present per unit volume of solution, expressed in grams per liter (g/L).

3. Importance of Concentration Calculation

Details: Accurate concentration measurements are crucial for preparing biological buffers, culture media, drug solutions, and for ensuring experimental reproducibility.

4. Using the Calculator

Tips: Enter mass in grams and volume in liters. Both values must be positive numbers. For small volumes, consider converting to liters (1 mL = 0.001 L).

5. Frequently Asked Questions (FAQ)

Q1: What are common concentration units in biology?
A: Besides g/L, common units include molarity (mol/L), % w/v (g/100mL), and mg/mL (equivalent to g/L).

Q2: How do I prepare a solution of specific concentration?
A: Weigh the required mass of solute and dissolve it in solvent to reach the desired final volume.

Q3: What's the difference between concentration and dilution?
A: Concentration measures solute amount per volume, while dilution is the process of reducing concentration by adding more solvent.

Q4: Why is concentration important in biological experiments?
A: Many biological processes are concentration-dependent, including enzyme kinetics, drug effects, and cell signaling.

Q5: How does temperature affect concentration?
A: While concentration itself is temperature-independent (mass/volume), solubility and reaction rates are often temperature-dependent.