Which of the following compounds has the highest mass percent of "O"?
MnO₂ MnO Mn₂O₃ Mn₃O₂
To solve the problem we will find the percenta mass of O that each compound has. To do that, we will suppose that we have 1 mol of each and find the mass of that mol, and the mass of O. To find the molar mass of them, we have to look for the atomic masses of Mn and O in the periodic table, they are:
Mn: 54.94 amu
O: 1
