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Nitella [24]
3 years ago
12

Phosphorus trichloride reacts with chlorine to form phosphorus pentachloride.

Chemistry
1 answer:
zalisa [80]3 years ago
5 0

Answer:

[PCl₃] = [Cl₂] = 0.035M

[PCl₅] = 0.059M

Explanation:

Based on the chemical reaction, Kc is:

Kc = 49 = [PCl₅] / [PCl₃] [Cl₂]

<em>Where [] are the concentrations in equilibrium of each species</em>

<em />

The initial concentration of the reactants is:

[PCl₃] = [Cl₂] = 0.75mol / 8.0L =  0.094M

The reactants must be consumed whereas PCl₅ will be produced. That is:

[PCl₃] = [Cl₂] = 0.094M - X

[PCl₅] = X

<em>Where X is the reaction coordinate</em>

<em />

Replacing in Kc expression:

49 = [X] / [0.094 - X] [0.094 - X]

49 = [X] / 0.008836 - 0.188 X + X²

0.432964 - 9.212 X + 49 X² = X

0.432964 - 10.212 X + 49 X² = 0

Solving for X

X = 0.059M → Right solution

X = 0.15M → False solution. Will produce negative concentrations

Replacing:

[PCl₃] = [Cl₂] = 0.094M - 0.059M = 0.035M

[PCl₅] = 0.059M

<h3>[PCl₃] = [Cl₂] = 0.035M</h3><h3>[PCl₅] = 0.059M</h3>

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Sergio039 [100]

Answer:

In natural selection, organisms adapt to the environment to best suit nature's needs to survive. In selective breeding, it's as if nature were humans and the humans can choose which organisms can survive and die. They do it so they can develop organisms with desirable characteristics.

8 0
3 years ago
A man weighs 185 lb. What is his mass in grams?<br> Please show work.<br> Thank you
Vera_Pavlovna [14]

Answer:

83914.52 grams

Explanation:

Given that,

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1 lb = 453.592 grams

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8 0
3 years ago
Carbon-12 is the most common isotope of carbon. It has 6 protons, 6 neutrons, and 6 electrons. Of its 6 electrons, 4 are valence
ra1l [238]
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Hope this answers the question.</span>
5 0
3 years ago
Read 2 more answers
How many formula units are found in 2.10 gram of Mgo? (No units<br> needed.)
disa [49]

Answer:

84.63924

Explanation:

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8 0
2 years ago
Need help solving these questions
Anton [14]

Answer:

1) 100

2) 22

3) 39

4) 6

5) 2b + 6

6) 8

7) 4n + 20

Explanation:

If B is the midpoint of AC and C is the midpoint of BD, means that all 3 parts are equal. AB = BC = CD

1) If AB = 50 then AC = AB + BC = 50 +50 = 100

2)if BD = 44 then is CD = 44 - BC ⇔ CD = 44 - 22 = 22

3) if AC = 26 and AC = AB + BC   then each part is 13  

AD = AC + CD = 26 +13 = 39

4)if CD = 6 then  AB = 6 Because all single parts are equal

5) if AC = 4b + 12 then is AB the half of it = 2b +6

6) if AD = 24 then AB = 1/3 of it = 8

7)if BC is 2n + 10 then is AC = 2x BC = 4n + 20

8 0
3 years ago
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