1. What is the Volume of Gas Formula?

Definition: This calculator estimates the volume of a gas based on the amount of substance (in moles) and the molar volume under given conditions.

Purpose: It helps chemistry students and professionals calculate gas volumes for experiments and industrial applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Volume of gas (dm³)
• \( n \) — Amount of substance (moles)
• \( V_m \) — Molar volume (dm³/mol)

Explanation: The amount of gas in moles is multiplied by the volume occupied by one mole of gas under the specified conditions.

3. Importance of Gas Volume Calculation

Details: Accurate gas volume calculations are essential for stoichiometric calculations, gas law applications, and laboratory preparations.

4. Using the Calculator

Tips: Enter the amount of substance in moles and the molar volume (default 24.0 dm³/mol for room temperature and pressure). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is molar volume?
A: Molar volume is the volume occupied by one mole of a gas at a specific temperature and pressure.

Q2: Why is 24.0 dm³/mol used as default?
A: This is the approximate molar volume at room temperature (25°C) and pressure (1 atm).

Q3: When would I change the molar volume value?
A: Adjust for different conditions (e.g., 22.4 dm³/mol at STP - 0°C and 1 atm).

Q4: How do I find the amount in moles?
A: Use mass divided by molar mass (n = m/M) or concentration times volume (n = c×V).

Q5: Can this be used for real gases?
A: This is ideal for ideal gases. For real gases under high pressure or low temperature, corrections may be needed.