Question When 10.00 g of magneslum are burned, 16.58 g of magnesium oxide are produced. What...

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Question

Answer 1

Answer #1

You can first write the chemical reaction for this reaction.

2Mg + O₂ ---------> 2MgO

Here you know that 10 g of Mg is reacting to form 16.58 g of MgO

Hence the difference between the mass of MgO and Mg will give us the mass of oxygen reacted

m_mg + m_o ---------> m_MgO

10 + m_o ----------> 16.58

m_o = 16.58 - 10

m_o = 6.58 g

Hence mass of oxygen gas reacted is 6.58 g .

Answer 2

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