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11 Dec 2019

Lithium and nitrogen react to form Li3N, according to thefollowing balanced chemical equation. 6Li + N2 → 2Li3N When 4.0grams of lithium reacted with 2.5 grams of nitrogen, how much ofthe non-limiting reactant is left over after the reaction iscomplete?

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Bunny Greenfelder
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13 Dec 2019
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Related questions


1) Potassium hydroxide and phosphoric acid react to form potassium phosphate and water according to the equation.
 
        3KOH(aq)+H3PO4(aq)→K3PO4(aq)+3H2O(l)
 
Determine the starting mass of each reactant if 58.5g of K3PO4 is produced and 86.8g of H3PO4 remains unreacted.
 
(A) What is the starting mass of KOH? 
 
(B) What is the starting mass of H3PO4? 
 
2) Ammonia is produced by the reaction of nitrogen according to the equation.
 
         N2(g)+3H2(g)→2NH3(g)
 
(A) Calculate the mass of ammonia produced when 35.0g of nitrogen react with 11.6g of hydrogen. 
 
(B) Which is the excess reactant and how much of it will be left over when the reaction is complete?
 
3) Nitric axide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2) a dark brown gas:
 
       2NO(g)+O2(g)→2NO2(g)
 
In one experiment. 0.893 mol of NO is mixed with 0.519 mol of O2. Determnine which of the two reactants is the limiting reactant. Calculate also the number if moles NO2 produced.
 
(A) Limiting reactant
 
(B) moles of NO2 produced
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