Question

Какое количество вещества оксида магния образуется из магния количеством вещества 0,3 моль кислорода?

Answer 1

2Mg+O2=2MgO так как кислорода 0,3 моль определяем магния пропорции, это делает 0,6 моль

Answer 2

Calculating the Amount of Magnesium Oxide Formed

To calculate the amount of magnesium oxide formed from a given amount of magnesium and oxygen, we can use the balanced chemical equation for the formation of magnesium oxide:

2Mg + O2 → 2MgO

Given that the amount of oxygen is 0.3 moles, we need to determine the amount of magnesium required to react with this quantity of oxygen.

Using the stoichiometry of the balanced chemical equation, we can see that 1 mole of oxygen reacts with 2 moles of magnesium. Therefore, the amount of magnesium required can be calculated as follows:

0.3 moles O2 × (2 moles Mg / 1 mole O2) = 0.6 moles Mg

So, 0.6 moles of magnesium are required to react with 0.3 moles of oxygen.

Conclusion

Based on the stoichiometry of the balanced chemical equation, 0.6 moles of magnesium are required to react with 0.3 moles of oxygen to form magnesium oxide.