# Gas Calculation Challenge: How Much Air Did You Seal in the Erlenmeyer Flask?

## How can we calculate the amount of air sealed in the Erlenmeyer flask?

Given data: Volume of Erlenmeyer flask = 272.2 mL, Density of air at 25°C = 0.001185 g/mL, Molar mass of air = 28.96 g/mol.

## Answer:

The amount of air sealed in the Erlenmeyer flask is approximately 0.0111 mol.

To determine the amount of air sealed in the flask, we need to use the density of the air (0.001185 g/mL at 25°C), the volume of the flask, and the molar mass of air. First, calculate the mass of the air in the flask using the formula density = mass/volume. Multiply the density by the volume to find the mass of the air.

Next, convert the mass to moles using the molar mass of air. Moles = mass / molar mass, which results in approximately 0.0111 mol of air sealed in the Erlenmeyer flask.

Gas calculations like this can help us understand the properties of gases and their behavior at different conditions. Keep challenging yourself with more gas calculation problems to enhance your understanding!