1. What Does ρ = 1 g/mL Mean?

Definition: This represents the density of water at 4°C, used as a reference standard in science and engineering.

Purpose: It provides a baseline for comparing densities of other substances and calculating mass-volume relationships.

2. How Does the Calculator Work?

The calculator uses the density formula:

Where:

• \( \rho \) — Density (1 g/mL for water)
• \( m \) — Mass (grams)
• \( V \) — Volume (milliliters)

Explanation: Since water's density is 1 g/mL, the mass in grams equals the volume in milliliters.

3. Importance of Water Density

Details: Water's density is fundamental in chemistry, physics, and engineering. Many measurements and calibrations are based on this standard.

4. Using the Calculator

Tips: Simply enter the volume of water in milliliters to calculate its mass in grams. The relationship is 1:1 at standard conditions.

5. Frequently Asked Questions (FAQ)

Q1: Does water always have this density?
A: No, water's density changes slightly with temperature and pressure. 1 g/mL is accurate at 4°C and 1 atm pressure.

Q2: Why is 4°C special for water?
A: Water reaches its maximum density at this temperature, before expanding as it freezes.

Q3: Can I use this for other liquids?
A: No, this is specific to pure water. Other liquids have different densities.

Q4: How precise is this relationship?
A: Very precise for pure water under standard conditions, but less accurate for impure water or different conditions.

Q5: Why use mL and g instead of other units?
A: The metric system was designed so that 1 mL of water weighs 1 g, making calculations convenient.