Answer:
To calculate the volume of 0.2 moles of H₂O (water), we need to use the relationship between moles, volume, and molar concentration. The molar volume of a gas at standard conditions (0°C and 1 atm pressure) is approximately 22.4 liters/mol. However, since water is in liquid form, we'll need to consider its density to calculate the volume.
The molar mass of water (H₂O) is approximately 18.01528 g/mol.
Given:
Moles of H₂O = 0.2 moles
Molar mass of H₂O = 18.01528 g/mol
We can calculate the mass of 0.2 moles of H₂O:
Mass = Moles × Molar mass
Mass = 0.2 moles × 18.01528 g/mol = 3.603056 g
Now, let's convert the mass to volume using the density of water. The density of water at room temperature (around 20°C) is approximately 1 g/cm³.
Given:
Mass = 3.603056 g
Density of water = 1 g/cm³
Volume = Mass / Density
Volume = 3.603056 g / 1 g/cm³ = 3.603056 cm³
So, the volume of 0.2 moles of H₂O is approximately 3.603 cm³ at room temperature and pressure.
Step-by-step explanation: