1. What is Density in Chemistry?

Definition: Density is a physical property of matter defined as mass per unit volume.

Purpose: It helps identify substances, determine purity, and understand material properties in chemical applications.

2. How Does the Density Calculation Work?

The calculator uses the formula:

Where:

• \( \rho \) — Density (g/cm³ or kg/m³)
• \( m \) — Mass of the substance (g or kg)
• \( V \) — Volume occupied (cm³ or m³)

Explanation: The mass of a substance is divided by its volume to determine how much matter is packed into a given space.

3. Importance of Density in Chemistry

Details: Density is crucial for identifying substances, calculating concentrations, designing separation techniques, and predicting buoyancy.

4. Using the Calculator

Tips: Enter the mass in grams and volume in cubic centimeters. For kg/m³ results, multiply the output by 1000.

5. Frequently Asked Questions (FAQ)

Q1: What are typical density units in chemistry?
A: Most common are g/cm³ for solids/liquids and g/L for gases (at standard conditions).

Q2: How does temperature affect density?
A: Density generally decreases with increasing temperature (except for water between 0-4°C).

Q3: What's the density of water?
A: Pure water at 4°C has a density of exactly 1.000 g/cm³.

Q4: How can density identify substances?
A: Each pure substance has a characteristic density that can help identify it.

Q5: What's the difference between density and concentration?
A: Density measures mass per volume, while concentration measures amount of solute per volume of solution.