Chemisty

In an experiment, 6.25 g of NH3 are allowed to react with 8.50 g of O2. The chemical equation for the reaction is 4NH3 + 5O2 → 4NO + 6 H2O. How many grams of water are produced? Which reactant limits the production of water? Which reactant is in excess?

  1. 0
  2. 0
  3. 13
asked by Samantha
  1. A limiting reagent (LR) and excess reagent (ER) problem. You know that because amounts are given for BOTH reactants; besides, the problem tell you.
    Convert 6.25 g NH3 to mols. mols = grams/molar mass
    Do the same for O2.

    Using the coefficients in the balanced equation, convert mols NH3 to mols H2O.
    Do the same and convert mols O2 to mols H2O.
    It is likely that thae two values for mols H2O will not agree; the correct value in LR problems is ALWAYS the smaller number AND the reagent responsible for that lower number is the LR. The other reagent is the ER.
    Now convert mols H2O to grams. g = mols x molar mass.

    1. 0
    2. 0
    posted by DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Take the reaction: NH3 + O2 ---> NO + H2O. In an experiment, 3.25 g of NH3 are allowed to react with 3.50 g of O2. Which reactant is the limiting reagent? You may either write the formula or the name of the limiting reactant.

    asked by Ayame on December 21, 2015
  2. chem

    For the reaction 2 N2(g) + 3 H2(g) → 2 NH3(g) which of the following can be determined using only the coefficients of the balanced chemical equation? the number of moles of NH3 obtained if 4.2 mol of N2 react completely to form

    asked by chris on October 17, 2016
  3. chem

    Calculate the equilibrium concentration of NH3,Cu^2+,[ Cu(NH3)]^2+ ,[Cu(NH3)2]^2+,[Cu(NH3)3]^2+,and[Cu(NH3)4]^2+ in a solution made by mixing 500.0 ml of 3.00 M NH3 with 500.0 ml of 2.00*10^-3 M Cu(NO3)2. The sequential equilibria

    asked by jack on November 17, 2015
  4. chemistry

    Ammonia and oxygen react to form nitrogen and water. 4NH3(g)+3 O2(g)-2N2(g)+6H2O(g) a.How many grams of O2 are needed to react with 8.00 mol NH3? 8.00 mol NH3 x42.094/4 mol NH3 x32.00 O2/1 mol O2=269gO2

    asked by Ana on June 25, 2010
  5. chemistry

    Ammonia and oxygen react to form nitrogen and water. 4NH3(g)+3 O2(g)-2N2(g)+6H2O(g) a.How many grams of O2 are needed to react with 8.00 mol NH3? 8.00 mol NH3 x42.094/4 mol NH3 x32.00 O2/1 mol O2=269gO2

    asked by Ana on June 25, 2010
  6. Chemistry

    Need help with my last question! Given the following reaction: 2NH3 (g) + 5F2 (g) ---> N2F4 (g) + 6HF (g) If 4.00 g of NH3 and 14.0 g of F2 are allowed to react, how many grams of HF can be produced?

    asked by kaitie on January 22, 2017
  7. chemistry

    1K2PtCl4+2(NH3)->1Pt(NH3)2Cl2+2KCl what is the percent yield, when 34.5 grams of NH3 react with excess K2PtCl4 if 76.4 g of Pt(NH3)2Cl2 are actually produced?

    asked by kelly on November 10, 2012
  8. Chem

    Which coordination compound will most likely form a precipitate when treated with silver(II) nitrate (aqueous)? [Cr(NH3)3Cl3] [Cr(NH3)6Cl3] Na3[Cr(CN)6] Na3[CrCl6] I tried the solubility rules, but that didn't work out. Any help

    asked by Londy on April 21, 2007
  9. Chemistry

    Copper(I) ions in aqueous solution react with NH3(aq) according to: Cu+(aq) + 2NH3(aq) > Cu(NH3)2+ (aq) Kf=6.3x10^10 M^-2 Calculate the solubility (in g·L–1) of CuBr(s) in 0.65 M NH3(aq).

    asked by Jematormal91 on April 5, 2012
  10. chemistry

    Copper(I) ions in aqueous solution react with NH3(aq) according to Cu+(aq) + 2NH3(aq) -->Cu(NH3)2^+ Kf = 6.3x10^10 Calculate the solubility (in g·L–1) of CuBr(s) (Ksp = 6.3× 10–9) in 0.41 M NH3(aq).

    asked by Katie on February 13, 2012

More Similar Questions