Question

How many gram of O2 is required for combustion 480 gram of Mg? Find the mass of MgO formed in this reaction.(Mg=24u,O=16u)​

Answer 1

♧ 2Mg + O2 => 2MgO

♧ 32 gm of O2 react with 48 gm of Mg

♧ So, 480 gm of Mg need 320 g of O2

♧ 48 gm of Mg produce 80 gm of MgO

♧ So, 480 of Mg produces 800 gm of MgO

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