Chemistry

posted by .

Calcium reacts with nitrogen to form calcium nitride. Indicate which reactant is limiting, calculate the mass of calcium nitride formed when 50.0g of calcium reacts with 50.0g of Nitrogen. How much excess reactant do you have?

  • Chemistry -

    3Ca + N2 ==> Ca3N2
    mols Ca = grams/atomic mass
    mols N2 = grams/molar mass

    Using the coefficients in the balanced equation, convert mols Ca to mols product.
    Do the same for mols N2 to mols product.
    It is likely that these two values for mols product will not agree which mans one of them is wrong. The correct value in limiting reagent problems is ALWAYS the smaller value and the reagent producing that number is the limiting reagent.
    g Ca3N2 = mols Ca3N2 x molar mass Ca3N2.

    How much of the excess reagent is left?
    Using the coefficients in the balanced equation (just as you did in converting to mols product), convert mols of the limiting reagent to mols of the non-limiting reagent. This tells you how much of that reagent was used. Subtract amount used from initial amount to find amount not reacted.
    Post your work if you get stuck.

  • Chemistry -

    13

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Many metals react with oxygen gas to form the metal oxide. For example calcium reacts: 2Ca(s) + O2(g)--> 2CaO(s) Calculate the mass of calcium prepared from 4,20g of Ca and 2.80g of O2. (a) How many moles of CaO can form from the …
  2. Chemistry

    Many metals react with oxygen gas to form the metal oxide. For example calcium reacts: 2Ca(s) + O2(g)--> 2CaO(s) Calculate the mass of calcium prepared from 4,20g of Ca and 2.80g of O2. (a) How many moles of CaO can form from the …
  3. chemistry

    A precipitate of calcium phosphate is formed when aqueous solutions of sodium phosphate and excess calcium chloride are mixed. If 100.0 mL of 1.5 M sodium phosphate solution is the limiting reactant, how many grams of calcium phosphate …
  4. Chemistry

    If the 3 moles of Calcium Nitride was then dissolved in 2 L of liquid ammonium what would the molarity of the Calcium Nitride /ammonium solution be?
  5. chemistry

    Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 grams of calcium, what is the limiting reactant?
  6. Chemistry

    Stoichiometry; Find the percent yield of solid calcium carbonate made when 5.0 mL of 1.0 M Sodium Carbonate reacts with 0.40g Calcium Chloride Balanced Equation; Na2(CO3)+CaCl2-->2NaCl+CaCo3 could you please help me step by step …
  7. chemistry

    How can you test calcium nitride.. ( Ca3N2) I have written the reaction between calcium and nitrogen. A question that says " how will you test the product formed " is given. SO can you please help me, How can you test calcium nitride?
  8. chemistry

    How to test calcium nitride.? ( ca3n2) when calcium reacts with nitrogen , Calcium nitride is formed. How can we test that the product formed is calcium nitride?
  9. Chemistry

    When 28g calcium reacts with 25 grams oxygen, how many grams calcium oxide form?
  10. Chemistry

    Ca+N-->Ca3N2 -What is limiting reagent?

More Similar Questions