Question

In: Chemistry

The following mechanism has been proprosed; i.HNO2+H+<--->H2O+NO+ (fast k1) ii. NH4+<-->NH3+H+ (fast k2) iii. NO+ +...

The following mechanism has been proprosed;

i.HNO2+H+<--->H2O+NO+ (fast k1)

ii. NH4+<-->NH3+H+ (fast k2)

iii. NO+ + NH3-->NH3NO+ (slow k3)

iv. NH3NO+--> H2O+H++ N2

a.Write the net overall equation?

b.The NH4+ ion is acting as the _______ in the reaction ?

c. the NO+ ion is acting as the _____ in the reaction?

d. The NH3 molecule is acting as the _____ in the reaction?

e. The H+ ion is acting as the _____ in the reaction?

f. Write the rate law for the rate determining step?

g. Write the rate law for the overall reaction?

Expert Solution

a.Write the net overall equation?

add all equations

HNO2+H+<--->H2O+NO+ (fast k1)

NH4+<-->NH3+H+ (fast k2)

NO+ + NH3-->NH3NO+ (slow k3)

NH3NO+--> H2O+H++ N2

overall --> HNO2+ NH4+ --> 2H2O + H+ + N2

b.The NH4+ ion is acting as the _______ in the reaction ?

reactant, since it is in the left side

c. the NO+ ion is acting as the _____ in the reaction?

intermediate, since it is not in the reactants/products in the overall reaction

d. The NH3 molecule is acting as the _____ in the reaction?

intermediate, since it is not in the reactants/products in the overall reaction

e. The H+ ion is acting as the _____ in the reaction?

product, since it appear to the right of th eeuqation

f. Write the rate law for the rate determining step?

determing step --> slow step

NO+ + NH3-->NH3NO+ (slow k3)

RATE = K*[NO+][NH3]

g. Write the rate law for the overall reaction?

RATE = K*[NO+][NH3]

queen_honey_blossom answered 2 years ago

Suppose K1 and K2 have the following distribution: Scenario Probability return K1 return K2 w(1) ...

Suppose K1 and K2 have the following distribution: Scenario Probability return K1 return K2 w(1) 0.3 -10% 10% w(2) 0.4 0% 20% w(3) 0.3 20% -10% (a) Find the risk of the portfolio with w1 = 30% and w2 = 70%. (b) Find the risk of the portfolio with w1 = 50% and w2 = 50%. (c) Which of the portfolios above (in part (a) and (b)), has higher expected returns?

Find [NH3], [NH4+], [OH–], [H3O+] and pH of a 0.080 M NH3 solution NH3(aq) + H2O(l)...

Find [NH3], [NH4+], [OH–], [H3O+] and pH of a 0.080 M NH3 solution NH3(aq) + H2O(l) NH4+(aq) + OH–(aq) Kb = 1.76·10–5

Asparaginase catalzyes the following reaction: Asparagine + H2O → aspartate + NH4+ The enzyme has been...

Asparaginase catalzyes the following reaction: Asparagine + H2O → aspartate + NH4+ The enzyme has been isolated from two different organisms. Asparaginase A has a KM for asparagine of 10 μM and a Vmax of 50 nmol-sec-1. Asparaginase B has a KM for asparagine of 20 mM and a Vmax of 200 nmol-sec-1. A. Which enzyme would convert more asparagine to aspartate in 10 min if the asparagine concentration were 20 μM? Explain your answer. B. Which enzyme do you...

Which of the following represents the hydrolysis of the ammonium ion? NH3(aq) + H2O(l) ⇄ NH4+(aq)...

Which of the following represents the hydrolysis of the ammonium ion? NH3(aq) + H2O(l) ⇄ NH4+(aq) + OH-(aq) NH3(aq) + H3O+(aq) ⇄ NH4+(aq) + H2O(l) NH4+(aq) + OH-(aq) ⇄ NH3(aq) + H2O(l) NH4+(aq) + H2O(l) ⇄ NH3(aq) + H3O+(aq)

Consider the reaction of NH3 with water: NH3 + H2O ↔ NH4++ OH- (Kb=Kw/Ka) and also...

Consider the reaction of NH3 with water: NH3 + H2O ↔ NH4++ OH- (Kb=Kw/Ka) and also NH4+ H2O ↔ NH3 + H3O+ (Ka = 5.70×10-10) Including the ICE Tables: a) Find the pH of 50.00 mL of 0.200M NH3 after the addition of 45.00 mL of 0.200M HCl. b) Find the pH of 50.00 mL of 0.200M NH3 after the addition of 50.00 mL of 0.200M HCl. c) Find the pH of 50.00 mL of 0.200M NH3 after the addition...

Predict the major products from the treatment of acetone with the following: (a) [H+], NH3, (-H2O)...

Predict the major products from the treatment of acetone with the following: (a) [H+], NH3, (-H2O) (b) [H+], CH3NH2, (-H2O) (c) [H+], excess EtOH, (-H2O) (d) [H+], (CH3)2NH, (-H2O) (e) [H+], NH2NH2, (-H2O) (f) [H+], NH2OH, (-H2O) (g) NaBH4, MeOH (h) RCO3H (i) HCN, KCN (j) EtMgBr followed by H2O (k) (C6H5)3P=CHCH2CH3 (l) LiAlH4 followed by H2O PLEASE SHOW ALL STEPS. THANK YOU.

Reaction 1: NH4+(aq) + H2O(l)NH3 + H3O+(aq) pKA = 9.2 the system described above, it has...

Reaction 1: NH4+(aq) + H2O(l)NH3 + H3O+(aq) pKA = 9.2 the system described above, it has been found that the activity coefficients for the species in solution are: (NH4+) = 0.80, (H3O+) = 0.90, (OH-) = 0.88 – the activity coefficients for neutral molecules are 1.0. a.) Write down the equilibrium expression for Reaction 1 in terms of activity coefficients and concentrations – i.e. the correct equilibrium expression which is NOT just in terms of concentrations. b.) Now algebraically manipulate...

Consider the ionization of aqueous ammonia: NH3(aq) + H2O(l) ⇌ NH4 + (aq) + OH- (aq)...

Consider the ionization of aqueous ammonia: NH3(aq) + H2O(l) ⇌ NH4 + (aq) + OH- (aq) a)Using the thermodynamic data from the textbook (Appendix C), calculate the values of ∆H°rxn, ∆G°rxn, and ∆S°rxn for this process at 25o C. b)Calculate the value of Kb (with 2 sig figs) at 25o C from the value of ∆G°rxn. c) The value of ∆G°rxn you obtain (if your calculations are correct) must be positive, indicating that the reaction in question is non-spontaneous. Why...

A proposed mechanism for the reaction N2O5-->2NO2 +1/2O2 N2O5 k1--> NO2+NO3 <---k_1-- NO2 +NO3 --k2--> NO...

A proposed mechanism for the reaction N2O5-->2NO2 +1/2O2 N2O5 k1--> NO2+NO3 <---k_1-- NO2 +NO3 --k2--> NO +O2 +NO2 NO +NO3 - k3-->2NO2 Applying the steady-state approximation to show that the overall reaction rate is -d[N2 O5 ]/dt=k[N2 O5 ] In this process you should evaluate K in terms of K1, K_1, K2 and K3

A) Given the two reactions H2S⇌HS−+H+, K1 = 9.23×10−8, and HS−⇌S2−+H+, K2 = 1.40×10−19, what is...

A) Given the two reactions H2S⇌HS−+H+, K1 = 9.23×10−8, and HS−⇌S2−+H+, K2 = 1.40×10−19, what is the equilibrium constant Kfinal for the following reaction? S2−+2H+⇌H2S Enter your answer numerically. B) Given the two reactions PbCl2⇌Pb2++2Cl−, K3 = 1.76×10−10, and AgCl⇌Ag++Cl−, K4 = 1.23×10−4, what is the equilibrium constant Kfinal for the following reaction? PbCl2+2Ag+⇌2AgCl+Pb2+ Express your answer numerically.