The equilibrium concentrations for the reaction between N2 and O2 to form NO at a certain temperature are given in the table below. What is the equilibrium constant for the reaction?

A. 42

B. 2.4 x 10^-2

C. 4.2 x 10^-4

D. 21

The Equilibrium Concentrations For The Reaction Between N2 And O2 To Form NO At A Certain Temperature

Answers

Answer 1

Answer:

c

Explanation:

c is correct i believe


Related Questions

(iii) Describe one test for the presence of water​

Answers

Answer:

Anhydrous copper sulphate.

Explanation:

In the presence of water anhydrous copper sulphate , a white powder, turns to blue.

A helium balloon in a closed car occupies a volume of 2.32 L at 40.0oC. How many moles of helium would exert 5 atm of pressure at the ideal conditions above?

Answers

Answer:

.451 mole

Explanation:

PV = n RT     R = gas constany = .082057 L-Atm/K-mol      T is in units Kelvin

5 *2.32 = n (.082057)(40+273.15)

n=.451 mole

which of the following chemical symbol is that of an element with six electrons in the outermost shell a)Ca b)Cl c)Ne d)S​

Answers

hey there!

Sulphur is the element which has 6 electrons in the outermost shell.

WhereasCalcium,Neon have 2 and chlorine has 7.

Hope this explanation helps you :)
Have a good day :)

Answer:

S

Explanation:

Using periodic table (see those little numbers in the upper right?  Those are electron 'shells' .... look at the bottom one)

Ca has 2     Cl has 7       Ne has 8        S  has 6 in the outermost shell

What pressure is exerted by 0.375 mol of hydrogen gas in a 4.33 L container at 55.0C?

Answers

Answer:

47

Explanation:

A gas occupied 780.0 mL at a temperature of 30°C. Several days later, it was measured at
a temperature of 16°C.
What volume did the gas occupy under these new conditions?

Answers

Answer:

744.0 mL

Explanation:

Formula obtained from Charles Law :

⇒ [tex]\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }[/tex]

===============================================================

Given :

⇒ V₁ = 780.0 mL

⇒ T₁ = 30 °C = 303 K

⇒ T₂ = 16 °C = 289 K

=============================================================

Solving :

⇒ V₂ = 780 × 289 / 303

⇒ V₂ = 225420 / 303

⇒ V₂ = 744.0 mL (approximately)

5. Consider the following experiment: A block of iron with an initial mass of 50 g is placed in a sealed container of pure oxygen. After several days, the block is red in color and has a mass of 74 g. Are these observations a violation of the law of conservation of mass? Justify your answer.

Answers

The observation in the illustration remains in accordance with the law of conservation of mass assuming that moisture is present in the container.

What is the law of conservation of mass?

The law state that mass can neither be created nor destroyed. However, mass can be converted from one form to another.

In this case, the ion was placed in a container of pure oxygen. Assuming that moisture is present, iron reacts with oxygen to form rust according to the following equation:

[tex]4Fe + 3O_2 + 6H_2O --- > 4Fe(OH)_3[/tex]

The rust formed will weigh more than the initial weight of the iron.

Without the presence of moisture, one can effectively conclude that the observation violates the law of conservation of mass.

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d. What is being done to save this species

e. An organization/group that is working towards

Create a commercial that showcases why we should save the manta rays

a. Commercials should be about 30seconds-1 minute. No longer than 30

Answers

Answer:

answer

Explanation:

I think it's e hope it right

what is the difference between soft water and hard water

Answers

Answer:

soft water can leath with soap whiles hard water cannot be leathers with soap

Answer:

Hard water is water with excess calcium and magnesium, while soft water lacks harsh minerals that can hurt your body.

Explanation:

Also, in hard water, soap is not so effective (little or no foam) and in soft water soap is easily effecive (foams easily).

Hydrogen gas is collected over water at a total pressure of 95.0kPa. The volume of gas collected is 28.0mL at 25.0˚C. Determine the partial pressure of the hydrogen gas if the water vapor pressure is 3.17kPa.

GAS LAW:

Given:

Unknown:

Formula:

Solution:

Answers

The partial pressure of the hydrogen gas, if the water vapor pressure is 3.17kPa is 91.83 kPa.

What is Dalton's law of gas?

Dalton's law of gas states that total pressure of the mixture of gas is equal to the sun of the partial pressure of the individual gas.

Given that,

Total pressure of hydrogen gas = 95 kPa

Partial pressure of water vapor = 3.17 kPa

Partial pressure of hydrogen gas will be calculated as:
Partial pressure = 95 - 3.17 = 91.83 kPa

Hence required partial pressure is 91.83 kPa.

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why might it be unwise to drink water straight from a pond

Answers

Answer:

it is because of the bacteria and different things that go into waters such as ponds, rivers, lakes, seas, oceans, streams, and other body of waters and I should also add the chemicals that go into them as well

Explanation:

Density is d= m/vol. If a material has a mass of 65.5 g and a volume of 32.5 ml, it has a density of

Answers

Using the given formula, the density of the material is 2.015 g/mL

Calculating Density

From the question, we are to determine the density of the material

From the given formula

Density = Mass / Volume

And from the given information,

Mass = 65.5 g

and volume = 32.5 mL

Putting the parameters into the equation,

Density = 65.5/32.5

Density = 2.015 g/mL

Hence, the density of the material is 2.015 g/mL.

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Using the rxn below determine the following: What is the limiting reagent, theoretical yield of nitic oxide, and how many grams of excess reagent remain when producing nitric oxide when using 4.65g of ammonia to react with 4.25g of oxygen?

Answers

5 mols of O_2 need 4 mol NH_3

As mols of ammonia are less Ammonia is limiting reagent

Now

Moles of Ammonia

Given mass/Molar mass4.65/170.3mol

Moles of NO=0.3mol

Mass of NO

0.3(30)9g

So

Moles of Oxygen

4.25/320.13mol

Remaining moles

0.3-0.13=0.17

Mass

0.17(32)5.44g

Yield

5.44-4.250.79g

3. fill in: name the organelle or organelles that perform each of the following functions. a. _____________________ convert sunlight to chemical energy. b. the _____________________ and the _____________________ help to support the plant cell and help it to maintain its shape. c. _____________________ store food or pigments. d. the _____________________ converts food into energy. it is found in both plant cells and animal cells.

Answers

Organelles are the components of the cells with various functions and roles. The correct blanks are chloroplast, cell wall and vacuole, vacuoles, and mitochondria.

What are the organelles?

The organelles are the cell components that have well-defined structures and functions to perform the designated task in the cell activity. Chloroplast is the organelle that converts solar energy into chemical energy through photosynthesis.

The cell wall and the vacuoles provide the structural framework and shape of the cell. The vacuoles also store food pigments in the cell. The mitochondria of the cell convert the food source into energy like ATP.

Therefore, the correct blanks are chloroplast, cell wall and vacuole, vacuoles, and mitochondria.

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what is an atom?Please help​

Answers

Answer:

It's the basic unit of an element.

something that makes up everything that has mass

Explanation:

Please help me with this chemistry

Answers

Answer:

57)a)increase

b)increase

c)pressure

58)

Name the following compound:
CH₂-CH-CH₂ - CH₂ - CH3
1
2
CH₂
CH₂

Answers

Answer:

methylhexane.

Explanation:

Because thats the answer.

Can diamond sublime at any pressure up to 1011 kPa? Explain your answer.

Answers

Yes, at high temperature and pressure (1011 kpa), diamond can change directly (sublime) into gaseous form.

What is a diamond?

Diamond is a solid form of the carbon element with its atoms arranged in a crystal structure called diamond cubic.

Diamond has some interesting properties, which is written below;

Diamond is extremely hard and non volatile substanceDiamond can sublime (change directly to gaseous sate)

A diamond interacts with oxygen in the air and disappears to form carbon dioxide.

Thus, at high temperature and pressure (1011 kpa), diamond can change directly (sublime) into gaseous form.

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An HNO3 (ag) solution has a pH of 1.75. What is the molarconcentration of the HNO3(aq) solution?

Answers

⇒ 0.018

-use pH=-log[H3O+]

-solve for H3O+

[Then mother noticed that two children who are watching the game are sick and coughing.She told her son to keep distance from those children to avoid getting sick]

1.Observe illustration no.1 and read the caption.Why did the mother ask her son to avoid the kid with cough?

2.Observe illustration no.2 and read the caption.Why did the mother let her son play with the kid with asthma?

please don't report this​

Answers

Answer:

in illustration 1

the mother told her son not to play with the boy having cough because it is a transferable disease which could cause him also to get sick and would get cough.

while in

illustration 2

the mother let the boy play with the boy having asthma because it is not a transferable disease which wold not affect him or any one else.

Explanation:

this is the reason

#1

Cough is a infectious disease .It spreads through the droplets falling outwards during coughing.If her son stays there for long time he would be affected by cough also or he would get sick .So the mother denied .

#2

Asthama is although a disease of lungs but it doesn't spread through air or droplets.It's not infectious .So nothing would happen if her child plays

I NEED HELP ASAP!!!!!!!!!!!!
WITHIN THE HOUR
Thanks

Answers

Answer:

A. O, S, Se

Explanation:

They are all considered "other nonmetals," found in row 16 of the periodic table, and are chalcogens. The other options don't have as much in common.

how many grams of KNO3 can be dissolved in 100g of water at 80c

Answers

Answer:

As temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C

Explanation:

As temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C

Name these compounds according to IUPAC. (ASAPP)

Answers

Propanal and acetone are the IUPAC names for the chemical.

What is the difference between propanal and acetones?

Propanal, commonly known as propanaldehyde, is an aldehyde with one double bond and one oxygen atom.

Acetone is a ketone compound. R2CO is the functional group of ketones.

Thus, Propanal and acetone are the IUPAC names for the chemical.

Learn more about propanal and acetones

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(Help!) What is the mass of hydrogen atoms that is measured at 72 u?​

Answers

Answer:

=71.439911 u

Explanation:

We know that 1 mass of hydrogen atom = 1.00784 u

If it's measured at 72u: 72/1.00784=71.439911 u

Mass of 1 mol hydrogen atoms =1.00784u

Total mass in 72u

72/1.0078471.43u

What is the mass of NaCl required to make 160 grams of a 12% solution of NaCl in water?
18 grams
19 grams
22 grams
24 grams

Answers

Answer: 19 grams

Explanation:

percent by mass = (mass of part)/(mass of whole) * 100

this means that in this question, 12 = x/160 * 100, where x is the amount of NaCl.

this means 12/100 = x/160, and thus x = (160)(12/100)=19.2 grams

The closest option is B.

Answer:

Second Option: 19 grams

Explanation:

Total solution weight: 160 grams

percent of NaCl in the solution: 12%

You take these two numbers and multiply them with 12 being over 100:

160 * [tex]\frac{12}{100}[/tex] = 19.2 grams

and then just round to the nearest whole number: 19 grams

Write the chemical formula for cobalt (II) bromide. Asp

Answers

Answer:

CoBr2

Explanation:

Hope it helps you :))))

have a good day

PLEASE HELP I NEED ANSWER ASAP

Answers

Mark the oxidation nos

Co=0Cu=2+

Then

Co=2+Cu=0

Gain of electron is reduction

Copper is reduced .

Option D

I NEED HELP ASAP!!!!!!!!!!!!
WITHIN THE HOUR
Thanks

Answers

Answer:

E. O, S, Se, Te

Look up atomic size charts, go to row 6

Identify the choice that best completes the statement or answers the question.
12 Julia is in a car with her farther. The car is undergoing centripetal acceleration. What is happening to the car?
F The car is changing direction at a constant speed.
G The car is changing direction and speeding up.
H The car is stopping suddenly.
I The car is slowing down.

Answers

Answer:

the car is slowing down l think so

which of the following is a compound .a)oxygen b) Magnesium c) Carbon dioxide d) Argon​

Answers

hey there!

C)Carbondixoide is a compound as it contains both carbon and oxygen.

A)oxygen is a element with symbol O
B)Magnesium is a element with symbol Mg
C> carbon dioxide is CO2
D)Argon is Ar

Hope this helps you dear :)
Have a good day!
Mark as brainliest :)

Four patients have been diagnosed with medical issues. A 2-column table with 4 rows. The first column labeled Patient has entries Josh, Ashley, Ron, Lindsay. The second column labeled Issue has entries sprained finger, pregnant with an under developed fetus, kidney stones, cancer in the tissues lining the uterus. Which patients could be best helped using ultrasound technology? Josh, Ashley, and Lindsay Josh Ron Ashley, Ron, and Lindsay

Answers

Answer:

Ashley, Ron, and Lindsay

Explanation:

Ultrasound technology is used for medical purposes by a scanning machine that allows to obtain living images of the inside of the body. For the type of issues they are going trough, ultrasound technology would help patients Ashley, Ron, and Lindsay. Ashley's under-developing fetus, Ron's kidney stones and, Lindsay's uterus cancer can be monitored by using ultrasound technology.

The ultrasound technology is a medical tool which can help a physician to evaluate, diagnose and treat medical conditions. Here the patients  with Ron, and Lindsay kidney stones and cancer can be detected by ultrasound technology. The correct option is D.

What is cancer?

A term for the disease in which the abnormal cells divide without control and can invade nearby tissues is defined as cancer. The cancer cells can also spread to the other parts of the body through the blood and lymph systems.

Kidney stones are the hard deposits made of minerals and salts which form inside our kidneys. It is mainly caused due to little drinking of water, obesity, eating food with high salt or sugar content.

The ultrasound technology can detect cysts, tumors, obstructions or infections within or around your kidneys. It is also used by the medical professionals for many purposes including the pregnancy related problems.

Thus the correct option is D.

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