1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Diano4ka-milaya [45]
3 years ago
10

A reaction mixture that consisted of 0.35 molH2and 1.6 mol I2 was introduced into a 2 L flask and heated. At the equilibrium, 60

% of the hydrogen gas had reacted. What is the equilibrium constant Kc for the reactionH2(g) + I2(g)⇀↽2 HI(g)at this temperature?
Chemistry
1 answer:
Ann [662]3 years ago
3 0

Answer:

The equilibrium constant Kc for the reaction is :

<u>16.07 </u>

<u></u>

Explanation:

The balanced equation is :

H_{2}(g)+I_{2}(g)\rightleftharpoons 2HI(g)

First ,

"At the equilibrium, 60% of the hydrogen gas had reacted"

This means the degree of dissociation = 60% = 0.6

Here we are denoting degree of dissociation by ="x" =  0.6

Now , consider the equation again,

H_{2}(g)+I_{2}(g)\rightleftharpoons 2HI(g)

H2                       I2                 2HI

0.35                   1.6                0            (Initial Concentration)

0.35(1 - x)           1.6(1 - x)         2x    (At equilibrium)

0.35(1 - 0.6)       1.6(1 - 0.6)      2(0.6)

0.14                     0.64                 1.2

calculate the concentration of each:

Concentration =\frac{moles}{Volume(L)}

C_{H_{2}}=\frac{0.14}{2}  

C_{H_{2}}=0.07moles/L

C_{I_{2}}=\frac{0.64}{2}  

C_{I_{2}}=0.32moles/L

HI=\frac{1.2}{2}  

HI=0.6moles/L

The equilibrium constant for this reaction "Kc" can be written as:

Kc=\frac{[HI]^{2}}{[H_{2}][I_{2}]}  

Kc=\frac{0.6^{2}}{0.07\times 0.32}

Kc=\frac{0.36}{0.0224}

Kc=16.07

You might be interested in
The hydrochloride form of cocaine has a solubility of 1.00 g in 0.400 mL water. Calculate the molarity of a saturated solution o
Tanya [424]

Answer:

The molarity of the solution is 7.4 mol/L

Explanation:

From the question above

0.400 ml of water contains 1.00 g of hydrochloride form of cocaine

Therefore 1000 ml of water will contain x g of hydrochloride form of cocaine

                    x = 1000 / 0.400

                    x = 2500 g

2500g of hydrochloride form of cocaine is present in 1000 ml of water.

Mole of hydrochloride form of cocaine = mass /molar mass of hydrochloride

Mole of hydrochloride form of cocaine = 2500/339.8

                                                                = 7.4 mol

Molarity = mol/ volume in liter (L)

molarity = 7.4 /1

Molarity = 7.4 mol/L

6 0
3 years ago
Read 2 more answers
An electrically neutral atom bears what trait?
zhenek [66]

C) It contains the same number of electrons and protons.

4 0
3 years ago
Most reactions speed up when
miss Akunina [59]
For a reaction to occur, there should be mobility of ions in reactant side.
If the reactant is larger, its mobility will be lesser than that of smaller ones.
So reactants smaller in size have higher mobility which makes reaction faster.

Hence D is the correct option.

Hope this helps, have a great day/night ahead!
7 0
3 years ago
Read 2 more answers
20 Points and Brainliest if you answer in 5 mins
wariber [46]
The correct answer is D) X: FM, Y: AM
4 0
3 years ago
What happened to the concentration of the product of H2O when the reaction shifts to the left
lilavasa [31]

I might need a diagram for this, but I have a vague idea of what you are talking about.

If H20 is going left it means the temperature is going lower.

The molecules will condense to slowly become ice

6 0
3 years ago
Other questions:
  • How many mL of 0.506 M HClare needed to dissolve 9.85 g of BaCO3?
    13·1 answer
  • A man heats a balloon in the oven. If the balloon initially has a volume of 0.4 liters and a temperature of 20 degrees celsius,
    5·1 answer
  • 23
    5·2 answers
  • Which best describes the same pattern of tides on earth throughout the day?
    13·2 answers
  • The reaction of 2-chloropropane with sodium hydroxide can occur via both SN1 and SN2 mechanisms.
    5·1 answer
  • Traits are characteristics that are
    9·1 answer
  • Enter the atomic symbols for an isotope with four protons and five neutrons
    14·1 answer
  • 20.0 g of Nitrogen is produced when oxygen gas reacts with NO gas. 29.8 L of oxygen is required at STP to produce this 20.0 g of
    11·1 answer
  • Why h2o has higher boiling point than nh3
    6·1 answer
  • Which factors can influence the length of time it takes for a half-life to occur?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!