Question

answer please number 1) a and b and 2 and 3

Experiment 4: Limiting reagent Often reactants are added in amounts different from the proportions given by the chemical equation in such cases, only one of the reactants may be completely consumed at the end of the reaction, whereas some amounts of other reactants will remain unreacted. The limiting reactant (or limiting reagent) is the reactant that is entirely consumed or converted to product when a reaction goes to completion. Once all of your limiting reactant is converted to product, you cannot produce any more product. You can determine the limiting reactant based on amounts of starting materials and the stoichiometry of your reaction. Data Analysis Part A 1. a. Given 120 molecules of Hz, calculate the maximum number of reaction events that could occur. Please show your work. 3H2(g) + N; (g) - 2NH3(g) 10 onants b. Given 50 molecules of Nz, calculate the maximum number of reaction events that could occur. Please show your work. X 50 2. Complete the table below based on a molecular interpretation of the chemical equation. You are starting with 120 molecules of H2 and 50 molecules of Nz. 3H2(g) + N2(g) + 2NH3(g) # of Rxn events # of molecules of H; remaining 120 # of molecules of N; remaining 50 # of molecules of NH, produced 10 20 30 40 60 30 20 3. Using Excel and the values in the table above, graph the number of reaction events (x-axis) vs. number of reactant molecules (y axis). Make one graph for each reactant. Graph the number of reaction events (x axis) vs number of product molecules (y axis). You will be creating a total of three graphs (lines) on ONE set of axes. Please see supplemental

Answer 1

SOLN 1-A

From the balanced equation we see that since for 1 molecule of N2 three molecule of H2 are required

hence for 120 molecules of H2 we require 120/3 = 40 molecules of N2 hence 40 reaction events can occur

(B) For 1 molecule of N2 1 reaction event can take place so if we have 50 molecules of N2 we have 50/1 = 50 reaction events that can take place

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