Chemistry 9701 · AS & A Level · Atoms, molecules and stoichiometry

Atoms, molecules and stoichiometry — practice question

If bromine is reacted with warm $\text{NaOH}(aq)$, the products formed have the same oxidation numbers, and in the same proportions, as those formed when chlorine reacts with hot $\text{NaOH}(aq)$. In one reaction between bromine and warm $\text{NaOH}(aq)$, a product containing sodium, bromine and oxygen has a mass of $30.2\ \text{g}$. What mass of $\text{NaOH}$ reacted?

  • A$8.00\ \text{g}$
  • B$10.2\ \text{g}$
  • C$20.3\ \text{g}$
  • D$48.0\ \text{g}$

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