Calculate the percent composition by mass of each element in LiClO2.

Given parameters:

  Chemical specie = LiClO₂

Unknown:

Percentage composition of each specie = ?

Solution:

The percentage composition involves knowing the percent of total mass of a compound is made up of each of the constituent elements or groups.

Sum up the atomic masses and find the formula massDetermine percentage composition of each element

Formula mass of  LiClO₂;

              7 + 35.5 + 2(16) = 74.5g/mol

The percentage composition of each species are;

%Li  = x 100  = 9.4%

%Cl  =  = 47.7%

%O₂  =  = 43.0%

Where's the pictures ?

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom