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
Ivahew [28]
3 years ago
13

The isomerization reaction, ch3nc → ch3cn, is first order and the rate constant is equal to 0.46 s-1 at 600 k. what is the conce

ntration of ch3nc after 0.20 minutes if the initial concentration is 0.30 m?
Chemistry
1 answer:
Harlamova29_29 [7]3 years ago
6 0
According to this formula :
㏑[A] /[Ao] = - Kt 
when we have Ao = 0.3 m 
and K =0.46 s^-1
t = 20min = 0.2 x 60 =12 s
So by substitution :
㏑[A] / 0.3 = - 0.46 * 12
㏑[A] / 0.3 = - 5.52
by taking e^x for both side of the equation we can get [A]
∴[A] = 0.0012 mol dm^-3
You might be interested in
Explain the difference between a front and an air mass.
iVinArrow [24]

Answer: The differences is Air masses cover over thousands and hundreds and millions of square kilo. A front is a boundary which two air masses but different temperature and moisture content meet.

Explanation:

8 0
2 years ago
What is found in the outer region of the electron cloud
Alex Ar [27]
Valence electrons is the answer to ur question
4 0
3 years ago
The primary goal of water-softening ion exchange systems is _____(1 point)
Anettt [7]

Answer:

The primary goal of water-softening ion exchange systems is _____(1 point)

removing magnesium and calcium from water. ***

removing sodium from water.

introducing magnesium and calcium into water.

introducing sodium into water.

How does a reverse osmosis water purification system operate? (1 point)

Untreated water is subjected to high pressure, causing it to move through a highly permeable membrane, which captures contaminants.

Untreated water is subjected to high pressure, causing it to move through a semi-permeable membrane, which captures contaminants. ***

Untreated water is subjected to low pressure, causing it to move through a highly permeable membrane, which captures contaminants.

Untreated water is subjected to low pressure, causing it to move through a semi-permeable membrane, which captures contaminants.

A city council is debating between two potential water purification systems: reverse osmosis and ion exchange. Cost is the primary criteria for the choice. Which decision is the most likely result of this debate?(1 point)

More research is needed because reverse osmosis systems require specialized maintenance, while ion exchange requires regular replacement of components. ***

A reverse osmosis system would likely be chosen because it does not require specialized maintenance or regular replacement of components.

More research is needed because ion exchange systems require specialized maintenance, while reverse osmosis requires regular replacement of components.hdhdhd

An ion exchange system would likely be chosen because it does not require specialized maintenance or regular replacement of components.

A city council is debating different alternatives for purifying water from a local reservoir. The council is considering ion exchange and reverse osmosis. Bacterial contamination of the water supply is the primary concern, and the council has decided that dealing with this is the main criteria for their choice. Which decision is the most likely outcome of this debate?(1 point)

They are likely to choose reverse osmosis because it is specifically designed to kill bacteria.

They are likely to choose ion exchange because it is specifically designed to kill bacteria.

They are likely to choose reverse osmosis because it addresses a wider range of problems, including bacteria. ***

They are likely to choose ion exchange because it addresses a wider range of problems, including bacteria.

Which of the following is a constraint of a chlorine bleach shock to remove contaminants from drinking water?(1 point)

This treatment only removes large solids.

This treatment only removes microscopic contaminants.

This treatment does not remove bacteria.

This treatment removes bacteria, but not other pollutants. ***

5 0
2 years ago
The diagram shows an image produced by a lens.
Katarina [22]

Answer:

I think the answer is X if wrong i´m sorry

Explanation:

7 0
3 years ago
Read 2 more answers
Which of the following substances heats the fastest?
Aneli [31]

Answer:

Zinc

Explanation:

The specific heat capacity can be described as the amount of heat required to raise the temperature of a substance by one degrees Celsius. It is represented by C or S. The greater the carrying capacity of a substance, the more will be the heat required for that substance.

As we can see in the information given in the question, the specific heat capacity of zinc is the lowest as compared to steel, water and aluminium. Hence, zinc is the correct option.

7 0
3 years ago
Other questions:
  • How many grams of aluminum oxide would form if 15.2 moles of aluminum burned
    7·1 answer
  • What is a reason why ethers have low water solubility?
    8·2 answers
  • In the following reaction the iodide ion (I-) in HI is oxidized by the permanganate ion (MnO4-). A 5.0 mL solution of 0.20M HI r
    8·1 answer
  • A sample of iodine is easiest to ship as a powder because it is making it easy to break into small pieces.What goes in the blank
    7·2 answers
  • if the pressure, volume, and the number of moles of a gas are known, which is needed to calculate the universal gas constant fro
    6·2 answers
  • Moritz is watching his little brother play in a mud puddle. Moritz notices that when his brother stirs it with a stick, after a
    11·2 answers
  • I HAVE 6 MORE PAGES ON THIS HUUUUUUGE ASSIGNMENT!! WHO WANTS TO HELP?????????? i have alr done 22 pages!!
    5·2 answers
  • 4Na (s) + O2 (g) - 2Na20 (s)
    11·1 answer
  • A Group 2 metal with an electron configuration of [Ne]3s2 combines with fluorine (F2) to
    5·1 answer
  • Describe how the pH of anti-acid powder can be determined
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!