Chemistry 0620 · IGCSE · The mole and the Avogadro constant

The mole and the Avogadro constant — practice question

Carbon is a significant element.
(a)[2]

Fill in the table.

(b)[1]

Name two allotropes of carbon that have giant covalent structures.

(c(i))[2]

Calculate how many molecules are present in 22.0 g of carbon dioxide, CO$_2$.

(c(ii))[1]

Calculate the number of molecules in 6.00 dm$^3$ of carbon dioxide gas at room temperature and pressure.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: First row: 6 6 6

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