Chemistry 5070 · O Level · Formulae

Formulae — practice question

A compound made up solely of carbon and hydrogen contains $80.0\%$ carbon by mass. Determine its empirical formula?

  • A$\text{C}_3\text{H}$
  • B$\text{CH}_3$
  • C$\text{CH}_4$
  • D$\text{C}_2\text{H}_6$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI