Question

What is the percent composition of silicon in silicon carbide (SiC)?

Answer 1

Atomic Mass of the silicon = 28 g.

Atomic mass of the Carbon = 12 g.

Total mass of the Silicon Carbide = 28 + 12

= 40 g.

Now, Using the formula,

% Composition = Mass of the silicon/Total mass of the compound × 100 %

= 28/40 × 100 %

= 7 × 10 %

= 70 %

Hence, % composition of the silicon in SiC is 70%.

Hope it helps.