Calculate the amount of potassium substance required to obtain 7 mol of potassium oxide.
| March 15, 2021 | education
4K + O2 = 2K2O.
According to the reaction equation, it can be seen that from 4 potassium molecules 2 molecules of potassium oxide are formed. Potassium and potassium oxide are in a ratio of 4: 2 or 2: 1. Therefore, to obtain 7 mol of potassium oxide, it is necessary to take twice as much potassium, that is, 14 mol.
Answer: to get 7 moles of potassium oxide, you need to take 14 moles of potassium.
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