A mixture of gases contains 0.320 mol CH4, 0.240 mol C2H6, and 0.300 mol C3H8. The total pressure is 1.45 atm. Calculate the partial pressures of the gases.

Answers

Answer 1

Answer:

pCH₄ = 0.540 atm

pC₂H₆ = 0.405 atm

pC₃H₈ = 0.505 atm

Explanation:

Step 1: Calculate the total number of gaseous moles

n = n(CH₄) + n(C₂H₆) + n(C₃H₈)

n = 0.320 mol + 0.240 mol + 0.300 mol = 0.860 mol

Step 2: Calculate the partial pressure of each gas

We will use the following expression.

pi = P × Χi

where,

pi: partial pressure of the gas "i"P: total pressureΧi: mole fraction of the gas "i"

pCH₄ = 1.45 atm × 0.320 mol/0.860 mol = 0.540 atm

pC₂H₆ = 1.45 atm × 0.240 mol/0.860 mol = 0.405 atm

pC₃H₈ = 1.45 atm × 0.300 mol/0.860 mol = 0.505 atm


Related Questions

1. Which of the following species exhibit tetrahedral geometry?
a. CCl4 b. PCI5 c. NH3 d. CO2

2. Which statement correctly describes the Valence Shell Electron Pair Repulsion (VSEPR) Theory? The valence electron pairs are__________.
a. The valence electron pairs are given by the group number in the periodic table.
b. The valence electron pairs are the outermost electrons of the atom that areinvolved in the bonding.
c. The valence electron pairs repel one another and tend to stay as far apart aspossible.
d. The valence electron pairs are the lone pairs of the atom.

3. Which of the following statements about resonance is TRUE?

I. Resonance hybrids occur because a compound changes back and forth between two or more resonancestructures
II. Resonance structures differ in the arrangement of electrons but not in the arrangement of atoms.
III. Resonance hybrids contain delocalized electrons.
IV. Resonance structures for a given compound always contribute equally to the resonance hybrid.
V. Resonance structures occur when there are two or more valid Lewis structures for a given compound.
VI. Resonance hybrids are a composite of resonance structures.

a.I, II, V, VI
b. II, III, IV, VI
c. II, III, V, VI
d. II, IV, V, VI

4. How many resonance forms will nitrate ion (NO3) have?
a. - 1 b. 1 c. 2 d. 3

5. What is the first noble gas?
a. Xenon b. Radon c. Helium d. Krypton

6. What is the principle used for filling of atomic orbitals?
a. Azimithual Principle
b. Hund's Principle
c. Pauling's Exclusion Principle
d. Aufbau Principle

7. How many electrons can "m" shell accommodate?
a. 16 b. 17 c. 18 d. 19

8. What number of shells used for the accommodation of electrons in an atom? a. one b. two c. three d. four

9. What distribution does the electron configuration describe?
a. protons
b. neutrons
c. electrons
d. ions

10. How many total electrons can the "p" orbitals hold?
a. 3 b. 1 c. 7 d. 6

11. Who are the founding fathers of Quantum Mechanics?
a. Werner Karl Heisenberg
b. Isaac Newton
c. Erwin Schrodinger
d. a and c

12. There are _types of quantum numbers.
a. 2 b. 4 c. 5 d. 7

13. Which of the following elements can only form one bond in a Lewis structure? a. H b. O c. Al d. N

14. Which rule states that electron will go into empty orbitals of the same energy before entering into an orbital with an electron present?
a. Hand's rule
b. Hund's rule
c. Pauli Exclusion Principle
d. Aufbau Principle

15. What is the definition of diamagnetic atom?
a. An atom where all of the electrons are paired
b. An atom where some of the electrons are paired.
c. An atom where none of the electrons are paired.
d. An atom attracted to a magnetic field.​

Answers

Answer:

a

Explanation:

Its because ammonium has thee hydrogen atoms

calculate the final pressure of a gas that is expanded from 725cm³ at 30C and 1.19 atm to 1.12cm³ at 43C​

Answers

Answer:

Final pressure, P2 = 1088.89 atm

Explanation:

Given the following data;

Initial volume, V1 = 725 cm³

Initial temperature, T1 = 30°C

Initial pressure, P1 = 1.19 atm

Final volume, V2 = 1.12 cm³

Final temperature, T2 = 43°C

To find the final pressure (P2), we would use the combined gas law.

Mathematically, the combined gas law is given by the formula;

[tex] \frac {PV}{T} = k [/tex]

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

Substituting into the formula, we have;

[tex] \frac {1.19*715}{30} = \frac {P_{2}*1.12}{43} [/tex]

[tex] \frac {850.85}{30} = \frac {P_{2}*1.12}{43} [/tex]

[tex] 28.3617 = \frac {P_{2}*1.12}{43} [/tex]

Cross-multiplying, we have;

[tex] 28.3617 * 43 = 1.12P_{2} [/tex]

[tex] 1219.5531 = 1.12P_{2} [/tex]

[tex] P_{2} = \frac {1219.5531}{1.12} [/tex]

Final pressure, P2 = 1088.89 atm

Help me please please

Answers

where is the directions here?

I cannot answer this if no directions

Can you retake the photo I can't see the question

A new element R shows chemical properties similar to the element sodium. What is the correct formula of a compound formed with R and sulfur?
R₂S
RS₂
RS
R₂S₂​

Answers

Answer:

R2S this is because sodium has one 1 valence and sulfur has valence of 2 so when they combine theyinterchange their valence

Which idea behind the shape of molecules includes the concept that electrostatic repulsion between electron pairs surrounding an atom causes these pairs to be separated as far as possible

Answers

Answer:

VSEPR theory

Explanation:

The valence shell electron pair repulsion theory was propounded by Gillespie and Nylom (1957).

The entire idea of the VSEPR theory is that the shape of a molecule depends on the electrostatic repulsion between electron pairs surrounding the central atom in a molecule which causes these pairs to be separated as far as possible.

The shapes of many molecules can be accurately predicted based on this model.

Which statement is not true about the periodic table?
A. Elements in the same family have the same number of protons.
B. An element of the table is represented by a box with a symbol in it.
C. Elements in the same period of the periodic table have the same
number of electron shells.
D. It is organized by atomic number.

Answers

Answer is A
All elements on the periodic table have a different number of protons that can be represented by its atomic number

Elements in the same family have the same number of protons. This  statement is not true about the periodic table. Therefore, option A is correct.

What is periodic table ?

The chemical elements are arranged in rows and columns in the periodic table, sometimes referred to as the periodic table of the elements. It is frequently used in physics, chemistry, and other sciences and is frequently regarded as a symbol of chemistry.

The table can be used by scientists to anticipate chemical reactions, study trends in the periodic properties of certain elements, and speculate on the properties of yet-to-be-discovered elements. The elements are arranged in the contemporary periodic table according to their atomic numbers and periodic characteristics.

The periodic table has changed to represent more than 150 years of chemical and physics research and development.

Thus, option A is correct.

To learn more about the periodic table, follow the link;

https://brainly.com/question/11155928

#SPJ2

Electrons will fill all empty orbitals within a sublevel before they begin to pair up. This is:

A. Hund’s rule
B. The Aufbau principle
C. None of these
D. Conservation of energy

Answers

The answer is A. Hund’s rule

Answer: Hund’s rule

Explanation:

2002040_MIJ COMP SCI 1_SEM 1 CR_PY
The three main types of scientific investigations are descriptive, comparative, and experimental. Which components
are included in all three types of investigations?
a scientific question
an independent variable
a dependent variable
a procedure
a control group
a conclusion

Answers

Answer:

a scientific question

Procedure

Conclusion.

Explanation:

Scientific investigation is usually carried out to explain and give answers to natural phenomenon. Now, this scientific investigation is performed through the three main types as described in the question.

With that being said, the most common parts of all types of investigation are :

1. Scientific question: In this stage, questions are usually asked on the basis of observation made which could be answered.

2. Procedure: In this stage, the dimension of the steps are followed to answer and test the scientific question.

3. Conclusion: This is the primary aim that we check when done with our sample values

AYUDA DOY CORONA

Numero masico del oro

Answers

Answer:

huh what?

Explanation:

Is  196,96657  u

I hope I've helped :)

Hands moving on a battery-operated clock is an example of what kind of
energy conversion?
A. Heat energy being converted to gravitational potential energy
B. Gravitational potential energy being converted to heat energy
C. Chemical potential energy being converted to kinetic energy
D. Kinetic energy being converted to chemical potential energy

Answers

C. Chemical potential energy being converted to kinetic energy

Answer:

Chemical potential energy being converted to kinetic energy

Explanation:

I am doing a lab and I am not sure how to calculate the concentration of the chemical formulas used in the lab. Would I need to use the 15ml and add it to the 10 ml of the first solution to find the concentration. Thank you

Answers

Answer:

C = m/V

Explanation:

In order to calculate the concentration of a mixture you would need to use the formula for concentration, which is the following...

C = m/V

In this formula C is the concentration, m is the mass of the compound that is being added and mixed into the solution, and V is the total volume of the mixture. The mass of m is in terms of number of moles. Therefore, we would need more information in order to calculate the actual concentration of the mixture that you are trying to find in this scenario. Using the formula above should be enough using the values that you have in your actual workbook.

hey i have personal question! um is it safe to use a shower head / faucet for a pleasure thing.. like will it lead me to std’s/sti’s….? infections? will it harm anything? help me pls!

Answers

It will not harm you unless the water is too hot or the water pressure is very high but you will be fine

Answer: Dont let the water get inside your private area because it can lead to you washing out the healthy bacteria in your private area !

Explanation:

Also dont do it because you dont know if your water is clean enough for that ..

classify each of the following solids as ionic,metallic, molecular, network (covalent)or amorphous?
1) Tetra phosphorous deicide(P4O10)
2)Graphite
3) Ammonium phosphate (NH4)3po4
4) Brass
5)SiC
6)Rb
7)l2
8)LiBr
9)P4
10) Plastic
11)Si​

Answers

Answer;

P4O10 - molecular solid

Graphite - network solid

Ammonium phosphate - ionic

Brass - metallic

SiC - network solid

Rb- metallic

I2 - molecular

LiBr- ionic

P4 - molecular

Plastic - amorphous

Si - network

Explanation:

An ioinc solid is made up of a pair of oppositely charged ion held together by electrostatic interaction between the bonding species.

A covalent solid is a solid in which the atoms involved in the solid are bonded together by covalent bonds. Covalent solids are also molecular.

Metals are held together by interaction of metal ions and a sea of electrons. This is called the metallic bond.

A network solid is composed of covalently bonded atoms that repeat itself in a definite manner. E.g SiC

Why is the amount of gas collected in one of the test tubes in Activity 1.7 double of the amount collected in the other? Name this gas.
For class 10th​

Answers

Answer:

Water contains two parts of hydrogen and one part oxygen. Therefore, during the electrolysis of water the amount of hydrogen has collected in one of the test tubes is double than that of the oxygen produced and collected in the other last tube.

 Help ASAP only right answers only no spam don’t answer if you don’t know

















Answers

Answer:

NO. 10.

performed experiments

NO. 11.

Inference

Explanation:

No 10.

in order to prove that Mary Mellon was in fact infected by typhoid proper experiments needs to be carried out.

No. 11

inference means an assumption due to the situation.

1. When a solution of an acid contains larger amount of acid, it is said to be

Answers

Answer:

highly concentrated solution of acid

Which of the following elements is the largest in size?
A) O
B) He
C) K
ODH

Answers

Answer:

C) K

Explanation:

K has an electron configuration of 2.8.8.1

How do you think you results would be affected if using K2Cr2O7/H2SO4 as the oxidizing agent instead of KMnO4

Answers

Answer:

Due to weak oxidizing agent.

Explanation:

In my opinion the results would be affected if using K2Cr2O7/H2SO4 as the oxidizing agent instead of KMnO4 because K2Cr2O7/H2SO4 is weak oxidizing agent as compared to KMnO4. An oxidizing agent is a substance that has the ability to oxidize other substances means that accept their electrons so that's why the results of strong oxidizing agent is different than weak oxidizing agent.

The results of the reaction will be affected due to the difference in :

Oxidizing agent strength

The use of  K₂Cr₂O7 / H₂SO₄ which is weaker oxidizing agent in the reaction will produce a different result from the use of KmnO₄ which is a stronger oxidizing agent.

This is because stronger oxidizing agents in reaction readily accept electrons from reactants while weaker oxidizing agents do not readily accept electrons from substances reacting in the reaction.

Therefore we can conclude that The results of the reaction will be affected due to the difference in oxidizing agent strength

Learn more : https://brainly.com/question/16450420

Although your question is incomplete a general solution is provide within the scope of your question

what is the difference between chemistry with other natural science​

Answers

Answer:

Hi!

chemistry;

unlike others, is more about atomic structure.

HAVE A NİCE DAY

Explanation:

GREETİNGS FROM TURKEY ツ

Answer:

CHEMISTRY means the study of matter and the different chemical reactions that any substance goes through, like, matters composition, structure, shape, state, etc. while geology, biology and physics are the other branches of science and chemistry acts as a bridge between physics and geology with biology.

hope it helps

have a nice day

A 20.0 mL solution of NaOH is neutralized with 24.1 mL of 0.200 M HBr. What is the concentration of the original NaOH solution

Answers

Answer:

0.241 M

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

HBr + NaOH —> NaBr + H₂O

From the balanced equation above,

The mole ratio of acid, HBr (nₐ) = 1

The mole ratio of base, NaOH (n₆) = 1

Finally, we shall determine the concentration of the NaOH solution. This can be obtained as follow:

Volume of base, NaOH (V₆) = 20 mL

Volume of acid, HBr (Vₐ) = 24.1 mL

Concentration of acid, HBr (Cₐ) = 0.2 M

Concentration of base, NaOH (C₆) =?

CₐVₐ / C₆V₆ = nₐ/n₆

0.2 × 24.1 / C₆ × 20 = 1/1

4.82 / C₆ × 20 = 1

Cross multiply

C₆ × 20 = 4.82

Divide both side by 20

C₆ = 4.82 / 20

C₆ = 0.241 M

Therefore, the concentration of the NaOH solution is 0.241 M

14. Which of the following alkanols on oxidation is most likely to yield the
compound below?
CHICHICOOON
.CO
(A) Butanol (B) Propan-2-ol(2-methylbutan-1-ol (D) 2-methylpropan-1-
ol (E) 2-methylpropan-2-ol.

Answers

Answer:

A

Explanation:

I think that is the ans but am not sure

Answer:

2-methylpropan-1-ol.

Explanation:

[tex]{ \tt{CH _{3}CH(CH _{3})CH _{2}OH}}[/tex]

A student determines the calcium content of a solution by first precipitating it as calcium hydroxide, and then decomposing the hydroxide to calcium oxide by heating. How many grams of calcium oxide should the student obtain if his solution contains 55.0 mL of 0.458 M calcium nitrate?

Answers

Answer:

1.41g

Explanation:

all work is shown in the attached image :-)

The number of Atoms present in one mole of an element is equal to Avogadro Number. Which One Of the Following contains the greatest number of Atoms? (1)4g He (2)46g Na (3)0.40g Ca (4) 12g He​

Answers

Answer:

Thus, the element containing the greatest number of atoms is 12 g He. Thus, the correct option is (4) 12 g He. Note: The number of atoms of a compound is Avogadro's number for 1 mole of compound. The number 6.022×1023 is known as Avogadro's number.

Explanation:

(4)✔️ 12 g He

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iammallika

Answer:

120gram I think so this is the answer if the answer is correct plz mark me as brainliest.

Question 1 of 10 What would be a good description of what activating prior knowledge means? O
A. Prior to reading, look at the end of the book or article.
O B. Before you read, recall knowledge you already have about the subject.
O C. Before you read, think about what you hope to learn.
O D. Before reading, find other material that is similar to what you are going to read ​

Answers

Answer:

B

Explanation:

Because activating prior knowledge means getting what you already know on the subject.

Calculate the numerical Kc value for the following reaction if the equilibrium mixture contains 0.51 M CO , 0.30 M H2 , 1.8 M CH4 , and 2.0 M H2O.

CO(g) + 3H2 (g) ⇌ CH4 (g) + H2O (g)
Show work

Answers

Answer:

uh i think this is the answer

Explanation:

¿Cuáles son las características del átomo de carbono?

Answers

I don’t understand this question


A television wave has a_____
wavelength than an infrared wave

Answers

Answer:

Longer

Explanation:

:)

I am having trouble converting :(

Answers

Answer:

For the first question, to determine the total number of molecules of nitrogen dioxide, first make use of the molar mass of the nonpolar compound and then use that to find the total number of moles and then subsequently after make use of the ratio for the Avogadro's number to determine the total number of molecules of this compound.

For the final question, do the inverse, where we make use of the molecules of the compound and then use Avogadro's number to determine the moles of the compound and then use the same molar mass of the compound to determine the grams of the Nitrogen Dioxide.

What is the net ionic equation for the following? :)
1. Mg (s) + Na2CrO4 (aq) -->

2. K (s) + Cd(NO3)2 (aq) -->

Answers

Answer:

1. Mg (s) + 2Na+(aq) → 2Na(s) + Mg²⁺(aq)

2. 2K(s) + Cd²⁺(aq) → 2K⁺(aq) + Cd(s)

Explanation:

The net ionic equation of a reaction express only the chemical species that are involved in the reaction:

1. Mg (s) + Na2CrO4 (aq) → 2Na + MgCrO4(aq)

The ionic equation:

Mg (s) + 2Na+(aq) + CrO4²⁻ (aq) → 2Na + Mg²⁺ + CrO4²⁻(aq)

Subtracting the ions that don't change:

Mg (s) + 2Na+(aq) → 2Na + Mg²⁺

2. 2K(s) + Cd(NO3)2(aq) → 2KNO3(aq) + Cd(s)

The ionic equation:

2K(s) + Cd²⁺(aq) + 2NO3⁻(aq) → 2K⁺(aq) + 2NO3⁻(aq) + Cd(s)

Subtracting the ions that don't change:

2K(s) + Cd²⁺(aq) → 2K⁺(aq) + Cd(s)

Select the correct text in the passage.

Answers

Explanation:

Oceans can influence weather and climate. For example, cities located near large water bodies like oceans tend not to have extreme climates

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Amy earned $25 after babysitting for 3 hours if amy always charges the same rate,how much will she make after babysitting for 7 hours can anyone help me with this In the years between 1865 - 1900, what ideas and philosophies most influenced the transformation of the United States from isolationism to expansionism? Solve each system of equations by substitution. Clearly identify your solution. please help....Which fraction has the greatest value? What is the percent yield of the reaction below if 84.0 grams of Al2O3(s) is recovered from a reaction whose theoretical yield of Al2O3(s) is 104 grams?4 Al(s) + 3 O2(g) 2 Al2O3(s) why it is important to create measurable goals. 5.11.A manufacturing process produces 500 parts per hour. A sample part is selected about every half hour, and after five parts are obtained, the average of these five measurements is plotted on an x control chart.(a) Is this an appropriate sampling scheme if the assignable cause in the process results in an instantaneous upward shift in the mean that is of very short duration?(b) If your answer is no, propose an alternative procedure. If your answer is yes, justify.5.12.Consider the sampling scheme proposed in Exercise 5.11. Is this scheme appropriate if the assignable cause results in a slow, prolonged upward drift in the mean? If your answer is no, propose an alternative procedure. Dona offers to sell her used sofa, chair, coffee table, end table, and lamp to Erma for $700. Erma responds that she will pay that price if Donas TV set is included. Neither party is a merchant. Their contract is formed according to a. whatever is reasonable. b. the new terms of the acceptance. c. none of the terms. d. the terms of the original offer. What is the default return type of a method in Java language?A.VoidB.IntC.NoneD.Short Define the term lostand found Explain how environment can influence personality. Suppose the government decides that every family should own its own home. To bring this about, the government decides to subsidize the home-construction industry by giving the home-construction companies $10,000 for every house that they build. As a result of this, : Compare large families with small one Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match the systems of equations to their solutions. Questions 23 and 29: Use the following information to answer each question. A recent book noted that only 20% of all investment managers outperform the Dow Jones Industrial Average over a five-year period. A random sample of 200 investment managers that had graduated from one of the top ten business programs in the country were followed over a five-year period. Fifty of these outperformed the Dow Jones Industrial Average. Let p be the true proportion of investment managers who graduated from one of the top ten business programs who outperformed the Dow Jones over a five-year period. 23. Based on the results of the sample, a 95% confidence interval for p is: a. (1.95, 3.15) b. (0.0195, 0 .0315) c. (0.190, 0.310) d. (0.028, 0.031) e. (0.195, 0.315) f. We can assert that p = 0.20 with 100% confidence, because only 20% of investment managers outperform the standard indexes. 24. Suppose you had been in charge of designing the study. What sample size would be needed to construct a margin of error of 2% with 95% confidence? Use the prior estimate of p=0.2 for this estimate. a. n=2401 b. n=1537 c. n=16 d. n=1801 e. n>30 Suppose you wish to see if there is evidence that graduates of one of the top ten business programs performs better than other investment managers. Conduct a hypothesis test. Use a level of significance of =0.05 25. Which of the following pairs of hypotheses is the most appropriate for addressing this question? a. H0: p=0.2 Ha: p0.2 d. H0: p0.2 Ha: p=0.2 26. How many measurements must you have in order to assure that p^ is normally distributed? a. n30 b. n5 c. np10 and n(1p)10 d. np5 and n(1p)5 27. The value of your test statistic is: a. 1.768 b. 0.039 c. 1.923 d. 0.077 28. The P-value of your test is: a. 1.768 b. 0.039 c. 1.923 d. 0.077 29. Is there sufficient evidence to conclude that graduates from the top ten business programs perform better than other investment managers? a. Yes. I rejected H0 b. Yes. I failed to reject H0 c. Yes. I accepted Ha d. No. I rejected H0 e. No. I failed to reject H0 f. No. I failed to accept Ha nWhy might buying a home during a recession be a good decision for some consumers? Check all that apply.Housing pricegare down.It is easier to get a mortgage.Less demand means more options for buyers.Less demand means less competition with other buyers.Fewer houses are on the market. Debbie promises to sell Brian a one of a kind baseball card for $1,000. Brian says that he does not have the money right now, but will have at it his next paycheck. Debbie gives Brian a signed written notice that the offer will stay open for two months. Does it the analysis change if Debbie is a merchant seller for this to be a firm offer under the UCC?a. Yes, such offers are not reasonable.b. Yes, such offers are voidable.c. Yes, such offers are void.d. Yes, the offeror must be a merchant, pursuant to the UCC definition of merchant.e. Yes, such offers are only valid until the sun sets. An automobile assembly plant in Kentucky purchases several thousand unassembled parts for automobiles and then performs final assembly of the vehicles before delivering them to dealers all over the nation. Purchasing parts several days or weeks before they are assembled would increase the total cash outlay the plant has tied up in inventory at any given time. In order to reduce the expense of large inventories, most assembly plants have successfully adopted __________ inventory systems.