What mass will 3 moles of oxygen have under normal conditions?

univerkov | September 9, 2021 | education

Given:
n (O2) = 3 mol

Find:
m (O2) -?

1) Using the periodic system of D.I.Mendeleev, calculate the molar mass of O2:
M (O2) = Mr (O2) = Ar (O) * N (O) = 16 * 2 = 32 g / mol;
2) Calculate the mass of O2:
m (O2) = n (O2) * M (O2) = 3 * 32 = 96 g.

Answer: The mass of O2 is 96 g.

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.