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anonymous
 4 years ago
How many grams of magnesium oxide can be produced when 125 g Mg react with 102 g O2?
anonymous
 4 years ago
How many grams of magnesium oxide can be produced when 125 g Mg react with 102 g O2?

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i already balenced the equation and got: 2MgO + O2 yield 2MgO

JFraser
 4 years ago
Best ResponseYou've already chosen the best response.1Find the moles of each reactant that are available\[mol Mg = 125g Mg * (\frac{1mol Mg}{24.3g Mg})\]\[mol O{_2} = 102g O{_2} * (\frac{1mol O{_2}}{32g O{_2}})\] The reaction requires a 2:1 ratio. One of those 2 is in short supply.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so is the oxygen short?

JFraser
 4 years ago
Best ResponseYou've already chosen the best response.1There are 5.14 moles of Mg available, and 3.19 moles of O2 available. The ratio required is 2Mg :1O2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so how do i find out the answer to the qustion?

JFraser
 4 years ago
Best ResponseYou've already chosen the best response.1If you were going to use all 3.19 moles of O2, there would have to be twice as much Mg (6.28moles). There isn't that much available, there's only 5.14moles. The Mg will run out first. Because of that, the Mg is the limiting reactant, it will limit the amount of product you can form.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i understand tht but how do i find out how much magnesium i can make

JFraser
 4 years ago
Best ResponseYou've already chosen the best response.1Use the coefficients of the balanced reaction: 2 Mg will make 2MgO
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