Carbon monoxide and chlorine gas react to form phosgene. If a reaction mixture initially contains 215 torr of CO and 245 torr of Cl₂. 0.76 is the mole fraction of COCl₂ when equilibrium is reached.
How to find Mole fraction ?CO(g) + Cl₂ (g) → COCl₂ (g) Kp = 310
With this reaction we can write the Kp expression
[tex]K_{p} = \frac{p_{COCl_2}}{p_{CO} \times p_{Cl_2}}[/tex]
We know that 1 atm = 760 torr
Now
[tex]p_{CO} = \frac{215 \times 1}{760}[/tex]
= 0.28 atm
[tex]p_{Cl_2} = \frac{245 \times 1}{760}[/tex]
= 0.32 atm
Now, we can write an ICE chart with pressures, so we can know the pressure of COCl₂.
CO(g) + Cl₂ (g) → COCl₂ (g) Kp = 310
I: 0.28 0.32 0
C: -x -x +x
E: 0.28 - x 0.32 - x x
Now put the value in Kp expression
[tex]K_{p} = \frac{p_{COCl_2}}{p_{CO} \times p_{Cl_2}}[/tex]
[tex]310 = \frac{x}{(0.28 - x) (0.32 - x)}[/tex]
[tex]310 = \frac{x}{0.0896 - 0.28x - 0.32x + x^2}[/tex]
310 (0.0896 - 0.28x - 0.32x + x²) = x
310 (0.0896 - 0.6 x + x²) = x
27.776 - 186 x + 310 x² = x
310 x² -187 x + 27.776 = 0
By using the quadratic equation find the value of x:
[tex]x = \frac{b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
[tex]= \frac{187 \pm \sqrt{(187)^2 - 4 \times 310 \times 27.776}}{2 \times 310}[/tex]
[tex]= \frac{187 \pm \sqrt{34969 - 34,442.24}}{620}[/tex]
[tex]= \frac{187 \pm \sqrt{526.76}}{620}[/tex]
[tex]= \frac{187 \pm 22.95}{620}[/tex]
[tex]= \frac{187 + 22.95}{620}\ \text{or}\ \frac{187 - 22.95}{620}[/tex]
[tex]= \frac{209.95}{620}\ \text{or}\ \frac{164.05}{620}[/tex]
[tex]= 0.33\ \text{or}\ 0.26[/tex]
Using the lowest value of x, we have that the partial pressure of COCl₂ would be 0.26 atm.
PpCO = 0.28 - x = 0.28 - 0.26 = 0.02
PpCl₂ = 0.32 - x = 0.32 - 0.26 = 0.06
[tex]X_{COCl_2} = \frac{P_{COCl_2}}{Pt}[/tex]
And Pt is the total pressure of all species in reaction so:
Pt = 0.02 + 0.06 + 0.26 =
= 0.34 atm
The mole fraction:
[tex]X_{COCl_2} = \frac{0.26}{0.34}[/tex]
= 0.76
Thus from the above conclusion we can say that Carbon monoxide and chlorine gas react to form phosgene. If a reaction mixture initially contains 215 torr of CO and 245 torr of Cl₂. 0.76 is the mole fraction of COCl₂ when equilibrium is reached.
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Name of process happening in this picture please
Answer:
Photosynthesis
Explanation:
The plant is turning the sun, soil, and air into sugar to feed itself
Answer:
photosynthesis
Explanation:
How many moles of hydrogen sulfide are contained in a 77.7-8 sample of this gas?
Select one:
o
a. 0.44mol
O b.4.56mol
O c. 38.5mol
O d. 111.8mol
e. 2.28mol
Answer:
its either C or D my guess is C though because 35.0g of hyddrogen is =1.03 mol
Explanation:
where do coal,oil and natural gas came from?
Answer:
I hope it will help you
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a molecure that contains 3 iddentical polar bonds to the central atom will be
ANSWER:
Nonpolar
sorry if I'm wrong
Sodium metal reacts with chlorine gas to produce crystals of sodium
chloride. Show phases in your equation.
Answer:
Na(s) + Cl(g) = NaCl(s)
Explanation:
s means solid
g means gas
Metals are solid at room temperature.
Crystals are solids
20 Points!! Which of the following is a synthesis reaction? AgNO3+NaCI--> AgCI+NaNO3
CH4+O2->CO2+H2O SO3+H2O-> H2SO4 Cu+AgNO3 ->Ag+CuNO3
QUESTION 7 Can you use alligation for any type of liquid?
Answer:
Yes you can use alligation for a type of liquid. Explanation: Alligation is an old and practical method of solving arithmetic problems related to mixtures of ingredients.
Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Thus, we can use allegation for any type of liquid.
What is matter?
Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.
Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.
Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter. Allegation is a form of liquid that we may utilize. Allegation is a time-tested and useful strategy for tackling mathematical issues involving combinations of elements.
Thus, we can use allegation for any type of liquid.
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SUMMARY: Write a 3-4 sentence summary about molecules.
Answer:
molecules definition is that "a molecule is an electrical neutral group of two or more atoms held together by chemical bonds molecules are distinguished from ions by their lack of electrical charge." molecules have a part of many things we touch or come across in a everyday life. se example of theses things are water,nitrogen, glucose, and many other things.a molecule is an atom that forms a chemical bond with another atom.
Explanation:
there
what is the geolgic tike scale based on?
Answer: The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages.
Explanation: I learned about it the other day
4)
On a hot day, your friend brings you some iced tea to cool off. Only, its unsweetened. You add sugar, but it just does not dissolve
fast enough. Which procedure would speed up the dissolving process?
A)
Add the sugar in the dark.
B)
Add larger crystals of sugar, or sugar cubes.
C)
Take the tea up to the top of a close mountain.
D)
• Take out the ice and stir it up outside where it is warmer.
Answer: D)
• Take out the ice and stir it up outside where it is warmer.
Explanation:
Answer:
thank you! I made it to an 100% on USA test prep...
the answer is: Take out the ice and stir it up outside where it is warmer.
Explanation:
I have a lot of rain last night when I go to bed. Stay safe!
1. What is an ionic bond?
Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
Explanation:
ionic bond is a bonding between a non-metal and a metal, that occurs when change atoms (ions) attract.
1 point
Which piece of apparatus can only measure a single fixed volume?
А250 cm beaker
B50 cm burette
С100 cm measuring cylinder
D25 cm pipette
Answer:
50 CM burette
Explanation:
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For keyboard navigation, use the up/down arrow keys to select an answer. a) Because the positive charge is on primary and secondary allylic carbocations etc. b) Because the positive charge is on a primary and a tertiary carbon c) Because the positive charge is on a primary and a secondary carbon d) Because the positive charge is on a secondary and a tertiary carbon
Answer:
b) because the positive charge is on primary and a tertiary carbon
Explanation:
The allylic carbon atom carries positive charge when primary carbon has positive charge. It forms an ion with tertiary carbon atom to form resonance. In secondary carbocation the positive charge is on secondary carbon atom. The atom are attracted and electrons form carbon - carbon sigma.
how many moles are in 1.505x10^24 molecules of surcrose
Answer:
2.499 moles of sucrose
Explanation:
Divide by Avogadro's number
Which substances are released during cellular respiration?
Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.
An adaptation is best described as occurring over which time scale? *
(10 Points)
O A. over many eras
O B. over many generations
O C. over one generation
D. over the lifetime of one individual
Answer:
over many eras
Explanation:
In an ecosystem, an adaptation is best described as occurring over many generations.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
There are various types of ecosystem present in the environment.
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A compound X has the following percentage composition 66.7% carbon, 11.1% hydrogen and 22.2% oxygen .Calculate the empirical formula of X.The relative molecular mass of X is 72 calculate the molecular formula
Explanation:
c. h. o
66.7%. 11.1%. 22.2%
____. ____. ____
12. 1. 16
1.558. 11.1. 1.39. (divide by the smallest)
1. 8. 1
empirical formula=ch8o
PLS HELP ME WITH MY ASSIGNMENT WILL MARK BRAINLIEST!
Answer:
D. anions ; +1
Explanation:
Alkali metals tend to lose one electron and form ions with a single positive charge. 'alkali metals typically lose 1 eclectron to form anions with a charge of +1".
A boy sets up a picnic on the beach next to a sand dune. How are sand dunes formed?
A. erosion and deposition
B. weathering and erosion
C. tectonic plates
D. precipitation
Answer:
B. Weathering and Erosion
Explanation:
I majored in Chemistry
Answer:
b
Explanation:
Which of the following can be calculated from the mass of the reactants used in a chemical reaction? (Select all that apply)
Theoretical yield of products
Amount of limiting reactant used in a reaction
Actual yield of products
Amount of excess reactant from a reaction
Answer:
Can you explain it more please
Explanation:
Beryllium oxide, Beo, is an electrical insulator. How
many moles of beryllium oxide qre in a 250 gram
sample of the compound?
Answer:
There are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.
Explanation:
We can calculate the number of moles (η) of BeO as follows:
[tex] \eta = \frac{m}{M} [/tex]
Where:
m: is the mass = 250 g
M: is the molar mass = 25.0116 g/mol
Hence, the number of moles is:
[tex] \eta = \frac{250 g}{25.0116 g/mol} = 10.0 moles [/tex]
Therefore, there are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.
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In the isotope Carbon-14, what does the number 14 represent?
Answer:
number of tamed protons and neutrons
the amount of copper sulphate used in dissolution is
Answer:
80 gm/mol
Explanation:
it may be helpful
Of the predators in the image, which one is most likely a keystone species?
O pine marten
O mountain lion
O eagle
O wolf
Answer:
mountian lion
Explanation:
In genetic engineering
Answer:
what is the question?
Explanation:
Answer:
A
Explanation:
i just did the question :)
Which half reaction is associated with the anode?
Sn(s) —> Sn2+ (aq) + 2e-
Sn2+ (aq) + 2e- → Sn(s)
Pb2+ (aq) + 2e-->Pb(s)
Pb(s)->Pb2+ (aq) + 2e-
Answer:
vgf
Explanation:
Answer:
its either A or B
Explanation:
took the test twice and guessed LOL
its not C or D :>
Help please !!!!!!! 10 points for this
The subatomic particle that is negatively charged and found in the space around the nucleus is
Answer: Electrons
Explanation:
An atom is the smallest unit of the matter and contains neutrons, protons and electrons as subatomic particles.
Neutrons which are neutral and protons which are positively charged are present in the nucleus.
The electrons which are negatively charged revolve around the nucleus in orbits called as shells.
I need help can somebody help me
Answer:
they slow down
Explanation:
Water molecules slow down as they lose energy. The molecules become closer together and decrease the volume.
In fossil comparisons, it helps to know about similar:
living things
questions
incomplete remains
Answer:
Fossils tell us when organisms lived, as well as provide evidence for the Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils, by comparing the anatomies of both modern and extinct species, allows scientists to study the skin, hair, and organs of ancient creatures.
Explanation: