# three questions 19 – exclusivewritings.com

three questions 19 – exclusivewritings.com

QUESTION 1. Consider the reaction:

$2$

N

H

3

(

g

)

âŸº

N

2

(

g

)

+

3

H

2

(

g

)

When B.00 x 10-1 moles of NH3(g) is introduced into a 1.00 L container, the equilibrium concentration of H2(g) to be B.00 x 10-2 M.

Calculate the equilibrium constant, Kc, for this reaction

QUESTION 2. The equilibrium constant, Kc, for the following reaction is A.0 at 350 K:

$H$

2

(

g

)

+

I

2

(

g

)

âŸº

2

H

I

(

g

)

Calculate the equilibrium concentrations of the reactants and product when C.0 x 10-1 moles of each reactant is introduced into a 1.00 L vessel at 350 K.

QUESTION 3. The first order rate constant for the decomposition of an unknown compound is B.00 x 10-4 1/s.

a.) If you have a B.0 x 10-1 M solution what will be the concentration after C.00 minutes?

b.) What is the half-life of the unknown compound in seconds?

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