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

Atoms, molecules and stoichiometry — practice question

An ore of copper contains $3.00\%$ copper carbonate, $\text{CuCO}_3$, by mass. What mass of copper can be obtained from $1$ tonne of this ore?

  • A$1.91\ \text{kg}$
  • B$3.71\ \text{kg}$
  • C$15.4\ \text{kg}$
  • D$58.4\ \text{kg}$

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