Magnesium metal when burns in air gives a mixture of its nitride & oxide. When dissolved in water the solution becomes basis because of NH_(3) & metal hydroxide. 39.2 gm sample of pure magnesium is reacted with 82.1 litre of air (containing only N_(2) & O_(2) in 4:1 molar ratio) at 1 atm & 300 K to form a mixture of nitride & oxide labelled as micture I such that all magnesium & one of the gases get completely consumed. this mixture is dissolved in water which is labelled as micture II. based on this information, answer the questions that follows. What is the molar ratio in which MgO & Mg_(3)N_(2) will be present respectively in mixture I ?

Magnesium metal when burns in air gives a mixture of its nitride & oxi

1.	Magnesium metal when burns in air gives a mixture of its nitride & oxide. When dissolved in water the solution becomes basis because of NH_(3) & metal hydroxide. 39.2 gm sample of pure magnesium is reacted with 82.1 litre of air (containing only N_(2) & O_(2) in 4:1 molar ratio) at 1 atm & 300 K to form a mixture of nitride & oxide labelled as micture I such that all magnesium & one of the gases get completely consumed. this mixture is dissolved in water which is labelled as micture II. based on this information, answer the questions that follows. What is the molar ratio in which MgO & Mg_(3)N_(2) will be present respectively in mixture I ?
Answer» `40/9` `9/40` `1:3` `3:1`