# The vessel was filled with 50 liters of oxygen, 50 liters of hydrogen, 50 liters of chlorine-hydrogen.

The vessel was filled with 50 liters of oxygen, 50 liters of hydrogen, 50 liters of chlorine-hydrogen. Calculate the volume fractions of each gas in the mixture.

Given:
V (O2) = 50 l
V (H2) = 50 l
V (HCl) = 50 l

Find:
φ (O2) -?
φ (H2) -?
φ (HCl) -?

Solution:
1) Calculate the volume of the mixture:
V mixture = V (O2) + V (H2) + V (HCl) = 50 + 50 + 50 = 150 l;
2) Calculate the volume fraction of O2:
φ (O2) = V (O2) * 100% / V mixture = 50 * 100% / 150 = 33.33%;
3) Calculate the volume fraction H2:
φ (H2) = V (H2) * 100% / V mixture = 50 * 100% / 150 = 33.33%;
4) Calculate the volume fraction of HCl:
φ (HCl) = 100% – φ (O2) – φ (H2) = 100% – 33.33% – 33.33% = 33.34%.

Answer: The volume fraction of O2 is 33.33%; H2 – 33.33%; HCl – 33.34%. One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.