Chemistry 5070 · O Level · Relative masses of atoms and molecules

Relative masses of atoms and molecules — practice question

To determine which nitrogenous fertiliser is superior, a student works out the percentage by mass of nitrogen in both ammonium sulfate and ammonium nitrate. Which row shows the correct answers?

  • Aammonium sulfate $10.6$, ammonium nitrate $17.5$
  • Bammonium sulfate $10.6$, ammonium nitrate $35.0$
  • Cammonium sulfate $21.2$, ammonium nitrate $35.0$
  • Dammonium sulfate $21.2$, ammonium nitrate $17.5$

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