When heated, lithium reacts with nitrogen to form lithium nitride:
6Li+N2 --> 2Li3N

What is the theoretical yield of Li3N in grams when 12.4 g of Li is heated with 33.9g of N2

  1. 👍 0
  2. 👎 1
  3. 👁 1,109
  1. This is a limiting reagent problem. How do I know that? Because BOTH reactants are given, not just one.
    1. You have the equation and it is balanced.
    2a. Convert 12.4 g Li to moles. moles = grams/molar mass.
    2b. Convert 33.9 g N2 to moles the same way.

    3a. Using the coefficients in the balanced equation, convert moles Li in 2a to moles Li3N.
    3a. Same process, convert moles N2 in 2b to moles Li3N.
    3c. It is more than likely that the two answers for moles Li3N will be different which means one of your values is wrong. In limiting reagent problems the correct answer is ALWAYS the smaller value and the reagent producing that smaller value is the limiting reagent.

    4. Now convert moles Li3N from 3c to grams. g = moles x molar mass. This is the theoretical yield.
    Post your work if you get stuck.

    1. 👍 1
    2. 👎 0
  2. 22.7g

    1. 👍 0
    2. 👎 0
  3. 43

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry 105

    Lithium reacts with nitrogen gas according to the following reaction: 6Li(s)+N2(g)-->2LiN(s) What mass of lithium (in g ) is required to react completely with 59.9 mL of N2 gas at STP?

  2. Science

    Compared to the process of extracting lithium from mineral deposits, the process of extracting lithium from evaporation ponds requires _____ water, _______ money, and ______ time My options: more, less, the same amount. Please

  3. chemistry

    Lithium metal dissolves in water to yield hydrogen gas and aqueous lithium hydroxide. What is the final concentration of hydroxide ions when 5.500 g of lithium metal is dropped into 750. mL of water?

  4. chemistry

    Lithium chlorate is decomposed with heat to give lithium chloride and oxygen gas. If 2.23g of lithium chlorate is decomposed, how many milliliters of oxygen are released at stp?

  1. Chemistry

    Heart pacemakers are often powered by lithium-silver chromate “button” batteries. The overall cell reaction is: 2Li(s) + Ag2CrO4(s) --------> Li2CrO4(s) + 2Ag(s) Lithium metal is the reactant at one of the electrodes of the

  2. chemistry

    lithium + gold(III) chloride +lithium chloride + gold need to balance equation

  3. Chem

    Which of the following pairs of elements are likely to form an ionic compound? lithium and chlorine sodium and potassium phosphorus and chlorine sodium and nitrogen argon and potassium

  4. Chemistry

    Lithium nitride reacts with water to form ammonia and aqueous lithium hydroxide. Li3N(s) + 3H2O(l) ==> NH3(g) + 3LiOH(aq) a)What mass of water is needed to react with 32.9g Li3N? b)When the above reaction takes place, how many

  1. Chemistry

    What is the formula for the ions in the compounds BaSO4 and Li2CO3 BaSO4 has barium ions (Ba2+, Sulfate ions SO42-, and Lithium carbonate has lithium ions Li1+, and carbonate ions CO32- Ba ions (might be written as Ba^2+) and

  2. chemistry.

    Lithium hydroxide reacts with carbon dioxide as follow. 2LiOH + CO2________ Li2CO3 + H2O What mass (in grams) of Lithium hydroxide is need to react with 11 g of carbon dioxide?

  3. chemistry

    0.4324 g sample of a potassium hydroxide-lithium hydroxide mixture requires 28.28 ml of 0.3520 M HCl for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?

  4. Chemistry

    What mass of lithium phosphate is needed to prepare 500.0 mL of a solution having a lithium ion concentration of 0.1385 M?

You can view more similar questions or ask a new question.