Calculate the percent composition by mass of each element in kclo4.

The percent composition is:

%K = 28.22%

%Cl = 25.59%

%O = 46.19 %

Explanation:

Step 1: Data given

Molar mass of KClO4 = 138.55 g/mol

Molar mass of K = 39.10 g/mol

Molar mass of Cl = 35.45 g/mol

Molar mass of O = 16.00 g/mol

Step 2: Calculate % of K

%K = (39.10 / 138.55) * 100 %

% K = 28.22 %

Step 3: Calculate % Cl

% Cl = (35.45 / 138.55) * 100%

%Cl = 25.59 %

Step 4: Calculate % O

% O = (64 / 138.55) * 100%

%O = 46.19 %

%K + %Cl + %O = 28.22% + 25.59% + 46.19% = 100%

THe percent composition is:

%K = 28.22%

%Cl = 25.59%

%O = 46.19 %

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this