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
Tju [1.3M]
3 years ago
9

Which of the following processes can be used to determine the instantaneous reaction rate for nitrogen monoxide (NO) at a specif

ic point of time as it reacts with ozone to form nitrogen dioxide and oxygen?
A. Plot [NO] versus time, and calculate the slope of a line drawn tangent to the point of interest on the graph.

B. Divide a specific [NO] by its time coordinate on thex-axis.

C. Plot [NO] versus time and determine the slope of the line.

D. Calculate the overall change in [NO] and divide it by the specific time of interest.
Chemistry
1 answer:
Juliette [100K]3 years ago
5 0

Answer: Plot [NO] versus time, and calculate the slope of a line drawn tangent to the point of interest on the graph.

Explanation: The instantaneous rate of reaction is the change in concentration over an infinitesimally small time interval.

That is, (ΔC/Δt) as Δt --> 0 or dC/dt

Instantaneous rate can be obtained from experimental data by first graphing the concentration of a system as function of time, and then finding the slope of the tangent line at a specific point which corresponds to a particular time of interest.

Alternatively, one can measure the change in concentration over a very small time period two or more times to get an average rate close to that of the instantaneous rate. The reaction rate for that time is determined from the slope of the tangent lines still.

You might be interested in
What is an inference?
sp2606 [1]

Answer:

A conclusion derived from evidence and logical reasoning

Explanation:

5 0
2 years ago
Read 2 more answers
You are given a solid that is a mixture of na2so4 and k2so4.
Murljashka [212]

Here we have to calculate the amount of SO_{4}^{2-} ion present in the sample.

In the sample solution 0.122g of SO_{4}^{2-} ion is present.

The reaction happens on addition of excess BaCl₂ in a sample solution of potassium sulfate (K₂SO₄) and sodium sulfate [(Na)₂SO₄] can be written as-

K₂SO₄ = 2K⁺ +  SO_{4}^{2-}

(Na)₂SO₄=2Na⁺ +  SO_{4}^{2-}

Thus, BaCl₂+  SO_{4}^{2-} = BaSO₄↓ + 2Cl⁻ .

(Na)₂SO₄ and  K₂SO₄ is highly soluble in water and the precipitation or the filtrate is due to the BaSO₄ only. As a precipitation appears due to addition of excess BaCl₂ thus the total amount of  SO_{4}^{2-} ion is precipitated in this reaction.  

The precipitate i.e. barium sulfate (BaSO₄)is formed in the reaction which have the mass 0.298g.

Now the molecular weight of BaSO₄ is 233.3 g/mol.

We know the molecular weight of sulfate ion (SO_{4}^{2-}) is 96.06 g/mol. Thus in 1 mole of BaSO₄ 96.06 g of SO_{4}^{2-} ion is present.

Or. we may write in 233.3 g of BaSO₄ 96.06 g of SO_{4}^{2-} ion is present. So in 1 g of BaSO₄ \frac{96.06}{233.3}=0.411 g of SO_{4}^{2-} ion is present.

Or, in 0.298 g of the filtered mass (0.298×0.411)=0.122g of SO_{4}^{2-} ion is present.        

5 0
3 years ago
When you place an alcohol thermometer in hot water, the
jeka94

Answer:

pressure

Explanation:

8 0
3 years ago
Why doesnt it exist?
belka [17]

Answer:

He2 molecule contains 4 electrons. Each atom gives 2 electrons in 1s orbitals. This way 2 (1s) orbitals combine to give 2 molecular orbitals viz. ... This indicates that there is no bond formation between 2 HE atoms and hence the He2 molecule does not exist.

Explanation:

8 0
3 years ago
A solution of acetic acid, CH3CO₂H(aq), is at equilibrium. How would the
s344n2d4d5 [400]

If more acetic acid were added to a solution at equilibrium, [H⁺] and [CH₃CO₂⁻] would increase to counteract the perturbation. (Option C)

<h3>How do systems at equilibrium respond to perturbation?</h3>

When a system at equilibrium suffers a perturbation, it shifts its equilibrium position to counteract such perturbation.

Let's consider a solution of acetic acid at equilibrium.

CH₃CO₂H(aq) = CH₃CO₂⁻(aq) + H⁺(aq)

If more acetic acid were added to the solution, the system will shift toward the products to counteract such an increase.

How would the system change if more acetic acid were added to the solution?

A. [H⁺] would decrease and [CH₃CO₂⁻] would increase. NO.

B. [H⁺] and [CH₃CO₂⁻] would decrease. NO.

C. [H⁺] and [CH₃CO₂⁻] would increase. YES. Both products would increase.

D. [H⁺] would increase and [CH₃CO₂⁻] would decrease. NO.

If more acetic acid were added to a solution at equilibrium, [H⁺] and [CH₃CO₂⁻] would increase to counteract the perturbation.

Learn more about equilibrium here: brainly.com/question/2943338

#SPJ1

3 0
2 years ago
Other questions:
  • Which of the following are interactions between particles in a liquid?
    7·1 answer
  • Which of the following is evidence of a physical change?haora
    15·2 answers
  • What does newton's third law say about why momentum is conserved in collisions?
    13·2 answers
  • A scale model of the solar system
    9·1 answer
  • Ammonia and gaseous hydrogen chloride combine to form ammonium chloride. NH3+HCL-&gt;NH4CL
    10·1 answer
  • When is Ksp determined for a system?
    13·2 answers
  • After mitosis, you have 2 cells that are the same as the parent cell. Why is it that your first cell was not the same as your pa
    10·1 answer
  • Which of the following is compound?
    11·2 answers
  • Which resource produces the cleanest energy?
    8·1 answer
  • What is known about a reaction with a positive enthalpy?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!