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Pearson Edexcel GCSE (9-1) Chemistry practice

If some magnesium oxide 'smoke' escapes from the crucible during the experiment, how will this affect the calculated empirical formula?

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Key concepts in chemistry

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If some magnesium oxide 'smoke' escapes from the crucible during the experiment, how will this affect the calculated empirical formula?.

  1. A.It will result in an artificially high mass of oxygen, leading to too many oxygen atoms in the formula.
  2. B.It will result in an artificially low mass of magnesium, leading to too few magnesium atoms in the formula.
  3. C.It will result in an artificially low mass of oxygen, leading to too few oxygen atoms in the formula.
  4. D.It will have no effect on the calculated empirical formula.

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