1. What is Density?

Density is a physical property of matter defined as mass per unit volume. It's a fundamental concept in chemistry and physics that helps identify substances and predict their behavior.

2. How Does the Calculator Work?

The calculator uses the density equation:

Where:

• \( D \) — Density (g/mL)
• \( M \) — Mass (grams)
• \( V \) — Volume (milliliters)

Explanation: The equation shows the direct relationship between mass and density, and the inverse relationship between volume and density.

3. Importance of Density Calculation

Details: Density calculations are essential for substance identification, purity analysis, buoyancy predictions, and many industrial applications.

4. Using the Calculator

Tips: Enter mass in grams and volume in milliliters. Both values must be positive numbers. For accurate results, measure mass and volume precisely.

5. Frequently Asked Questions (FAQ)

Q1: What are common density units?
A: While g/mL is common for liquids and solids, kg/m³ is standard in SI units. Gas densities are often in g/L.

Q2: Why does density change with temperature?
A: Most substances expand when heated (increasing volume), which decreases density since mass stays constant.

Q3: What's the density of water?
A: Pure water has a density of 1.000 g/mL at 4°C. At room temperature (20°C), it's about 0.998 g/mL.

Q4: How is density used to identify substances?
A: Each pure substance has a characteristic density that can help identify it when combined with other tests.

Q5: What's the difference between density and specific gravity?
A: Specific gravity is density compared to water (unitless), while density has units of mass/volume.