題組內容

31. The questions from 31a to 31d share the same conditions. The experiment of determining the chemical formula of magnesium oxide.

31b. Assume the reaction in (a) is the only one occurring and it goes to completion, but some product has been lost from the crucible. Deduce the percentage yield of magnesium oxide in the crucible. [1 mark]65fba7221b5db.jpg