Tungsten carbide is becoming ipopular for making jewelry. a chemist is examining a sample of tungsten carbide (chemical formula wc). what is
the percent composition of tungsten in this compound? round your answer to the nearest whole percent.
the percent composition of tungsten is
96.

94%

Explanation:

Given:

Formula of tungsten carbide = WC

Unknown:

The percentage composition of tungsten in the compound = ?

Solution:

To evaluate the percentage composition of an atom in a compound, one must express the ratio of the atomic weight of the atom and the molar mass of the compound as a percentage i.e

     Percentage composition of W = x 100

Atomic weight of W = 183.84g/mol

Atomic weight of C = 12.01g/mol

Formula mass of WC =( 183.84 + 12.01)g/mol = 195.85g/mol

% composition of W =   x 100 = 93.87%

  The percentage composition of tungsten is 94%