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
Serga [27]
3 years ago
12

Two experiments were performed involving the following equilibrium. The temperature was the same in both experiments. H2(g) + I2

(g) 2HI(g) In experiment A, 1.0 M I2 and 1.0 M H2 were initially added to a flask and equilibrium was established. In experiment B, 2.0 M HI was initially added to a second flask and equilibrium was established. Which of the following statements is always true about the equilibrium concentrations?
A.[H2] equals [HI] in experiment A.

B.[HI] equals 2[H2] in experiment A.

C.[HI] in experiment A equals [HI] in experiment B.

D.[HI] in experiment A equals 1/2[I2] in experiment B.
Chemistry
2 answers:
saw5 [17]3 years ago
6 0

Answer : The correct option is, (C) [HI] in experiment A equals [HI] in experiment B.

Explanation :

For experiment A :

The given balanced equilibrium reaction is,

                    H_2(g)+I_2(g)\rightleftharpoons 2HI(g)    

In experiment A, when we start with 1 mole of hydrogen & 1 mole of iodine gas then it combines to form HI. If this was a completely one-way reaction then it can form 2 moles of HI.

For experiment B :

The given balanced reverse equilibrium reaction is,

                    2HI(g)\rightleftharpoons H_2(g)+I_2(g)

In Experiment B, when we start with 2 moles of HI then it breaks into hydrogen & iodine. If this was a completely one-way reaction then it can form 1 mole of hydrogen and 1 mole of iodine gas.

As we know that equilibrium can be obtained both from reactant and product side.

From the above we conclude that in both the experiments, the same concentration ratio is approached but from an opposite directions. In the end, the concentration of HI will be the same for both the experiments.

Hence, the correct option is, (C) [HI] in experiment A equals [HI] in experiment B.

Leya [2.2K]3 years ago
3 0
I believe that the best answer among the choices provided by the question is
<span>D.[HI] in experiment A equals 1/2[I2] in experiment B.</span>
Hope my answer would be a great help for you.    If you have more questions feel free to ask here at Brainly.

You might be interested in
Differentiate between the following terms.
Lorico [155]

Answer:

a.reducing agent reduces other elements and make itself oxidized

b.Oxidizing agent reduces itself and make other element oxidized

c.Oxidation state is apparent charge on an atom

Explanation:

7 0
3 years ago
A reaction of importance in the formation of smog is that between ozone and nitrogen monoxide described by O 3 ( g ) + NO ( g )
Aleksandr [31]

Answer:

(a) 7.11x10⁻⁴ M/s

(b) 2.56 mol.L⁻¹.h⁻¹

Explanation:

(a) The reaction is:

O₃(g) + NO(g) → O₂(g) + NO₂(g)   (1)

The reaction rate of equation (1) is given by:

rate = k*[O_{3}][NO]     (2)

<u>We have:</u>

k: is the rate constant of reaction = 3.91x10⁶ M⁻¹.s⁻¹

[O₃]₀ = 2.35x10⁻⁶ M

[NO]₀ = 7.74x10⁻⁵ M

Hence, to find the inital reacion rate we will use equation (2):

rate = k*[O_{3}]_{0}[NO]_{0} = 3.91 \cdot 10^{6} M^{-1}s^{-1}*2.35\cdot 10^{-6} M*7.74 \cdot 10^{-5} M = 7.11 \cdot 10^{-4} M/s  

Therefore, the inital reaction rate is 7.11x10⁻⁴ M/s

(b) The number of moles of NO₂(g) produced per hour per liter of air is:

t = 1 h

V = 1 L

\frac{\Delta[NO_{2}]}{\Delta t} = rate

\frac{\Delta[NO_{2}]}{\Delta t} = 7.11 \cdot 10^{-4} M/s*\frac{3600 s}{1 h} = 2.56 mol.L^{-1}.h{-1}

Hence, the number of moles of NO₂(g) produced per hour per liter of air is 2.56 mol.L⁻¹.h⁻¹

I hope it helps you!                                

5 0
3 years ago
n a coffee cup calorimeter, 100.0 mL of 1.0M NaOH and 100.0 mL of 1.0M HCl are mixed. Both solutions were originally at 24.6 deg
RoseWind [281]

Answer:

Explanation:

mass of the solution = volume x density = 200 x 1 = 200 gm

heat absorbed = m x s x Δ t , s is specific heat , Δt is rise in temperature

= 200 x 4.18 x ( 31.3 - 24.6 )

= 5601 J .

This is the enthalpy change required.

3 0
3 years ago
An atom with six protons and eight neutrons is a(n)___
mylen [45]

Answer:

standard carbon atom

Explanation:

7 0
3 years ago
Read 2 more answers
List three factors that may affect the rate at which the metal reacts with a given acid
Novay_Z [31]

Reactant concentration, the physical state of the reactants, and surface area, temperature.

8 0
3 years ago
Other questions:
  • Which of the following is an example of the conversion of kinetic energy into gravitational potential energy?
    8·1 answer
  • Hexane is a chain organic compound that has the formula C6H14. What type of organic compound is hexane?
    7·2 answers
  • The organic compounds that are structural elements in the cell walls of plants and bacteria are known as
    9·1 answer
  • Which element's atomic radius increases the most in size when it becomes ionized? A. Sodium B. Chlorine C. Fluorine D. Lithium
    15·1 answer
  • If a=1/2(a+b)h,express a in terms of A,b and h. pls solve with step by step ​
    15·1 answer
  • Soda water is water that has bubbles of carbon dioxide in it,
    13·2 answers
  • 6th grade science i mark as brainliest​
    9·1 answer
  • Fill in the blank...<br> Each element is made up of only one kind of ________
    6·1 answer
  • How many grams of CaO can be produced using 3.9 moles CaCO3?1<br> CaCO3 --&gt; 1CaO + 1CO *
    7·1 answer
  • How many mol of Cl are in 10.0 g of Cl? The molar mass of Cl is 35.45 g/mol
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!