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cricket20 [7]
3 years ago
11

The equilibrium constant, Kc, for the following reaction is 83.3 at 500 K. PCl3(g) Cl2(g) PCl5(g) Calculate the equilibrium conc

entrations of reactant and products when 0.453 moles of PCl3 and 0.453 moles of Cl2 are introduced into a 1.00 L vessel at 500 K.
Chemistry
1 answer:
Alik [6]3 years ago
6 0

Answer:

[PCl_3]=[Cl_2]=0.068M

[PCl_5]=0.385M

Explanation:

Hello!

In this case, since the equilibrium expression for the considered equation is:

Kc=\frac{[PCl_5]}{[Cl_2][PCl_3]}

Which can be written in terms of the reaction extent and the ICE chart and the initial concentrations of 0.453 M as shown below:

83.3=\frac{x}{(0.453M-x)(0.453M-x)}

We can solve for x as follows:

x=0.385M

In such a way, we obtain the following concentrations at equilibrium:

[PCl_3]=[Cl_2]=0.453M-0.385M=0.068M

[PCl_5]=0.385M

Best regards!

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Two different compounds are formed by the elements nitrogen and oxygen. The first compound, compound P1, contains 64.17% by mass
xz_007 [3.2K]

Answer:

Explanation:

To solve the problem, we must know the kind of compounds we are dealing with.

For the first compound, P1 and second compound P2:

                                N                       O                         N                     O

Mass percent       64.17                 35.73                  47.23               52.79

Atomic mass          14                      16                         14                    16

Number of

moles            64.17/14            35.73/16            47.23/14    52.79/16      

                            4.58                  2.23                     3.37                  3.30

Simplest

ratio                 4.58/2.23            2.23/2.23             3.37/3.30         3.3/3.3

                              2                           1                             1                        1

                             

P1 compound is N₂O

P2 compound is NO

These are the compounds,

   In N₂O = 28:16

          NO = 14:16

This is the ratio of nitrogen to a fixed mass of oxygen for the two compounds.

7 0
2 years ago
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