Calculate the amount of oxygen required for the oxidation of 28 g of Ca.

univerkov | December 3, 2020 | education

let’s compose the reaction equation:
2ca + o2 = 2cao
find the molar mass of calcium:
M (ca) = 40 * 2 = 80 g / mol
let’s make a proportion:
28/80 = x / 22.4
x = 7.84 l

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.