Will the following reaction take place as written (NH3 pka=37.7 and CH4 pka=47.7)? NH3(l) + Na+CH3-(l)...

Will the following reaction take place as written (NH₃ pka=37.7 and CH₄ pka=47.7)?

NH_3(l) + Na⁺CH₃^-_{(l) ------->} Na⁺NH₂^-_(l) + CH_4(g)

Solutions

Expert Solution

The given reaction will take place. The reaction is an example of double replacement (displacement) reaction. Two compounds exchange ions to form two new compounds.

We know the relation,

Ka[NH3] = [NH2-][H+]/[NH3]

Ka[CH4] = [CH3-][H+]/[CH4]

pKa = -log[Ka]

pKa for NH3 is lower then the pKa of CH4, i.e. Ka of NH3 is higher then the Ka of CH4. Therefore, the probablity of CH4 forming CH3- and H+ is lower then NH3 going to NH2- and H+. Thus the reaction will favor forward direction and formation of NaNH2 and CH4. Hence this reaction will take place.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

which of the following are likely to act as lewis acids? BF3, NH4+, NH3, CH3+, CH4,...

which of the following are likely to act as lewis acids? BF3, NH4+, NH3, CH3+, CH4, H2O, H3O+

for the molecule with the main corresponding intermolecular force CH4 and H20 CH4 Ch2=O CH3-OH Na...

for the molecule with the main corresponding intermolecular force CH4 and H20 CH4 Ch2=O CH3-OH Na and NH3 NAOH

Consider the following reaction that is occurring inside a sealed container: CH4(g) + NH3(g) <-- -->...

Consider the following reaction that is occurring inside a sealed container: CH4(g) + NH3(g) <-- --> HCN(g) + 3H2(g) If we increase the volume of the sealed container without changing the temperature, will this affect the amounts of product and reactant in this container? If so, will the amounts of products increase or decrease? Briefly EXPLAIN!

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...

Rank the following in order of increasing acidity: H2O, NH3, CH4, H2S, HCl CH4, NH3, H2O, ...

Rank the following in order of increasing acidity: H2O, NH3, CH4, H2S, HCl CH4, NH3, H2O, H2S, HCl H2O, NH3, CH4, H2S, HCl NH3, CH4, H2S, H2O, HCl NH3, H2O, CH4, H2S, HCl

What percentage of resulted Hydrogen in the reaction: CH4 (g) + NH3 (g) --> HCN (g)...

What percentage of resulted Hydrogen in the reaction: CH4 (g) + NH3 (g) --> HCN (g) + 3H2 (g) must be burnt, with formation if H2O (g), to ensure the quantity of heat absorbed in the reaction? (the answer is: approximately 35%) Heat of formation : Hf (kJ/mol) CH4 (g) = -74,7 NH3 (g) = -46,2 HCN (g) = 130,5 H2O (g) = -241,6

Given the following: CH3CH2OH + NH3 -- CH3CH2O- + NH4+ pka of Ethanol = 15.9. A)...

Given the following: CH3CH2OH + NH3 -- CH3CH2O- + NH4+ pka of Ethanol = 15.9. A) Calculate the Keq for the acid-base reaction. B) Explain different result between reactions of ammonia with acetic adis, and with ethanol.

1. Determine ΔGo for the following reaction: 2 Na(s) + 2 H2O(l) --> H2(g) + 2...

1. Determine ΔGo for the following reaction: 2 Na(s) + 2 H2O(l) --> H2(g) + 2 OH-(aq) + 2 Na+(aq) 2. Calculate K for the oxidation of iron by H+: 2 Fe(s) + 6 H+(aq) --> 2 Fe3+(aq) + 3 H2(g)

Determine whether or not the following gas phase reaction is spontaneous at 25 degrees Celsius. CH4(g)+N2(g)=HCN(g)+NH3(g)

Which of the following compounds is a Lewis acid? a. BCl3 b. NH3 c. CH4 d....

Which of the following compounds is a Lewis acid? a. BCl3 b. NH3 c. CH4 d. CHCl3

Subjects