What volume will 1.27 moles of helium gas occupy at 80.00 °C and 1.00 atm?
Pls and thank you :) !

Answers

Answer 1

Answer:

36.8 L

Explanation:

We'll begin by converting 80 °C to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

T(°C) = 80 °C

T(K) = 80 + 273

T(K) = 353 K

Finally, we shall determine the volume occupied by the helium gas. This can be obtained as follow:

Number of mole (n) = 1.27 moles

Temperature (T) = 353 K

Pressure (P) = 1 atm

Gas constant (R) = 0.0821 atm.L/Kmol

Volume (V) =?

PV = nRT

1 × V = 1.27 × 0.0821 × 353

V = 36.8 L

Thus, the volume occupied by the helium gas is 36.8 L


Related Questions

does anyone know thisss???

Answers

B............................

Identify the term that matches each electrochemistry definition.

a. The electrode where reduction occurs ___________
b. An electrochemical cell powered by a spontaneous redox reaction ___________
c. The electrode where oxidation occurs__________
d. An electrochemical cell that takes in energy to carry out a nonspontaneous redox reaction ____________
e. A chemical equation showing either oxidation or reduction ___________

Answers

Answer: a. Cathode

b. Galvanic cell

c. Anode

d. Electrolytic cell

e. half reaction

Explanation:

Galvanic cell or Electrochemical cell is defined as a device which is used for the conversion of the chemical energy produced in a spontaneous redox reaction into the electrical energy.

Electrolytic cell is a device where electrical energy is used to drive a non spontaneous chemical reaction.

In the electrochemical cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode.  Thus the electrons are produced at anode and travel towards cathode.

The balanced two-half reactions will be:

Oxidation half reaction : [tex]M\rightarrow M^{n+}+ne^-[/tex]

Reduction half reaction : [tex]N^{n+}+ne^-\rightarrow N[/tex]

Thus the overall reaction will be: [tex]M+N^{n+}\rghtarrow M^{n+}+N[/tex]

What is the empirical formula for C6H12?

Answers

Answer:

The empirical formula of C6 H12,

What value is equivalent to 7.2 kilograms

Answers

Answer: 15.8732828773 pounds

Explanation:

What is the main function of burette?

Answers

Answer:

I  think it A

Explanation:

Answer:

its d i think

Explanation:

Which of the following behaviors might indicate a patient is drug seeking?
A. A patient wants to avoid a specific medication because of
potential side effects.
B. A patient explains that she is from out of town and needs a
specific medicine because she left her prescription at home.
C. A patient fears her new prescription will conflict with another
medication she's currently taking.
D. A patient thinks she needs a smaller dose of her prescription
because it gives her headaches.
SUBMIT

Answers

The answer would be D sorry if wrong

Answer:

B is correct :)

Explanation:

Trust me I just took the test

Which equation represents single replacement reaction? A) CH4 + 2 02 → CO2 + 2 H2O B) CaCO3 + CaO + CO2 C) 2 Na + 2 H2O → 2 NaOH + H2 D) LiOH + HCl → LiCl + H2O​

Answers

Answer:

C) 2 Na + 2 H2O → 2 NaOH + H2.

Explanation:

Hello there!

In this case, according to the given chemical reactions, it is possible to firstly understand that a single displacement reaction is characterized by the presence of a single element as the first reactant and a compound as the second one, thus, yielding a compound as the first product and a single element as the second one.

In such a way, according to the given choices, it possible to note that C) 2 Na + 2 H2O → 2 NaOH + H2 is the only one with the aforementioned condition as the element at the reactants side is Na and at the products side is H2.

Best regards!

The initial volume of a gas is 21 L and the final volume is 38.7 L. If the initial temperature was 261 K, what is the final temperature (in Kelvin)?

Answers

Answer:

480.9K

Explanation:

V1=21L

V2=38.7L

T1=261K

T2=?

Using Charles law,

V1/T1=V2/T2

Inputting the given values,

21/261=38.7/T2

T2=480.9K

Match each definition to the appropriate term.
Sum of the internal energy plus the product of the pressure and volume for a reaction
The extent of randomness in a system
The condition that a reaction takes place without outside help
Difference of the enthalpy (of a system) minus the product of the entropy and absolute temperature
Solution in which no more solute can be dissolved in the solvent

Answers

Answer:

Enthalpy, Entropy, Spontaneity, Gibbs free energy, saturated solution

Explanation:

Enthalpy is defined as the heat released or the heat absorbed during the process at a constant pressure which is equal to the Enthalpy shift. Enthalpy is also called as heat content and it is the sum total of internal energy and the product of the volume and pressure of a system.

Entropy is defined as the measure of randomness of a system or the disorder of the system.

Spontaneity is defined as the condition of being spontaneous. It is the condition where a reaction takes place without any help from outside.

Gibbs free energy is defined as the energy that is used to quantify the maximum work done in a thermodynamic system at constant temperature and pressure. It is the also known as the Gibbs energy or function.

Saturated solution is defined as the solution where the maximum amount of the dissolved solute is present in the solvent. In case of a saturated solution, the extra solute does not dissolve. In order words, it is a solution where no more solute can dissolved in solvent.

The sum of the internal energy plus the product of the pressure and volume for a reaction represents Enthalpy , Entropy is the extent of randomness in a system, Spontaneity is that condition that a reaction takes place without outside help, Gibb's free energy is the difference of the enthalpy (of a system) minus the product of the entropy and absolute temperature and Saturated solution in which no more solute can be dissolved in the solvent.

Which properties will define chemical reaction?

Thermodynamically chemical reactions will be define by considering the properties like entropy, enthalpy, free energy, internal energy, temperature and many more.

Enthalpy of the reaction tells about the total amount of heat released or absorbed during a chemical reaction, and it is calculated as sum of the internal energy plus the product of the pressure and volume for a reaction.Entropy of any reaction tells about the randomness and uncertainty present within the molecule or atoms.Spontaneity of any chemical reaction tells about the ease of completion of that reaction. Gibb's free energy is the total energy involved in that reaction and represented as difference of the enthalpy (of a system) minus the product of the entropy and absolute temperature.Saturated solutions are those solutions in which all solute get completely dissolved, no solute will remain undissolved.

Hence correct answers are Enthalpy , Entropy ,Spontaneity, Gibb's free energy and Saturated solutions.

To know more about saturated solutions, visit the below link:
https://brainly.com/question/4529762

What happens when particles collide in sound waves?

Answers

Answer:

When sound is created, the air particles vibrate and collide with each other, causing the vibrations to pass between air particles. The vibrating particles pass the sound through to a person's ear and vibrate the ear drum. Light travels much faster than sound through air.

Explanation:

the number of particles in a mole if substance

A.avografo number

b.molar volume

c.molar mass

d.molar ratio

Answers

its avagadro number
represented by Na
6.02*10^23

IM GIVING 100 POINTS FOR WHOEVER ANSWERS THIS PLS HELP determine which heat transfers below are due to the process of conduction. I) You walk barefoot on the hot street and it burns your toes. II) When you get into a car with hot black leather seats in the middle of the summer and your skin starts to get burned when you touch the seats. III) A flame heats the air inside a hot air balloon and the balloon rises. IV) A boy sits to the side of a campfire. He is 10 feet away, but still feels warm. Question 1 options: I & II III & IV I, II, & IV II, III, IV

Answers

Answer:

I and II

Explanation:

Please help:
An object rolled 15m/s for 3 seconds. How far did it roll?

Answers

45m!

explanation:
15x3=45 :)
9 m/s is the answer,.,,,.,,

If I have 7.0 x 10^24 formula units of magnesium chloride, how many grams of chlorine would I have?

Answers

Answer:

824 g

Explanation:

First we convert 7.0 x 10²⁴ formula units of magnesium chloride (MgCl₂) into moles, using Avogadro's number:

7.0 x 10²⁴ formula units ÷ 6.023x10²³ formula units/mol = 11.62 mol MgCl₂

There are two Cl moles per MgCl₂ moles, meaning that we have (2 * 11.62) 23.24 moles of Cl

Finally we convert 23.24 moles of chlorine into grams, using chlorine's molar mass:

23.24 mol * 35.45 g/mol = 824 g

pH de un jugo de naranja con [H+]=5.6×10-4M.​

Answers

Explanation:

[tex]pH = - log[H {}^{ + } ] \\ = - log(5.6 \times {10}^{ - 4} ) \\ = 3.25[/tex]

Which property do all metals have?
А They are hard.
B They conduct electricity.
С They form acidic oxides.
D They react with water.​

Answers

B.) They conduct electricity (I think)

A 108.9 g sample of water absorbs 114.6 calories of heat. The specific heat capacity of water is 1 cal/(g·°C). By how much did the temperature of this sample change, in degrees Celsius?

Answers

Answer:

The temperature of this sample changes by 1.052 degrees Celsius

Explanation:

As we know

[tex]Q = mc\Delta T[/tex]

Where m is the mass of the substance

c is the specific heat of the substance

and [tex]\Delta T[/tex] is the change in temperature

Substituting the given values in above equation, we get -

[tex]114.6 = 108.9 * 1 * \Delta T\\\Delta T = 1.052[/tex]degree Celsius

The temperature of this sample changes by 1.052 degrees Celsius

5. Vilayanur Ramachandran belleves that in order to understand how our brains work, we need to look at brains that don't work as they should in order to see the differences
and effects that the disconnect of neurons can have on our memories, thoughts, and understanding.
True
O False

Answers

Answer:

true

Explanation:

A mixture of water and water vapor is present in a closed vessel at 20 degrees Celsius. the total pressure of the system is 755.0 mmHg. Partial pressure of water vapor at 20 degrees Celsius equals 17.5 mm Hg. What is the partial pressure of H2

Answers

Answer:

737.5 mmHg

Explanation:

Ptotal=PH2O+PH2

P is the pressure and since we have Ptotal and PH2O, we can solve for PH2

755=17.5+x

755-17.5=x

x=737.5

What's a house hold item that has nuclear energy

Answers

Answer:

Electricity, Weapons, Medicine · Food Treatments, ect.

if a lake has excess levels of phosphates and nirates in its water what will most likely result ?

Answers

Answer:

Eutrophication

Explanation:

Eutrophication results when there is excess levels of phosphates and nitrates in its water of lake.

When there is high level of nutrition level in the water body of lake, then the productivity of water plants increases thereby leading to algal boom and hence Eutrophication.

2
A student put 25.0 cm of dilute hydrochloric acid into a conical flask.
The student added 2.5g of solid sodium carbonate and measured the change in temperature of
the mixture.
Which apparatus does the student need to use to obtain the most accurate results?
A balance, measuring cylinder, thermometer
B balance, pipette, stopwatch
C balance, pipette, thermometer
D
burette, pipette, thermometer

Answers

Answer:

A balance, measuring cylinder, thermometer

Explanation:

In this experiment, three things are really required and they are;

A balance Measuring cylinderThermometer

A balance is used to measure out the mass of 2.5g of solid sodium carbonate.

A measuring cylinder is used to measure out the 25.0 cm of dilute hydrochloric acid into a conical flask.

Lastly, a thermometer is used to monitor the change in temperature.


[tex]\huge \underbrace \mathfrak \red {Question: } [/tex]
❥How can an acid be diluted?​

Answers

Explanation:

Acid can be diluted through the distillation process in which acid is reacted with distilled substance like distilled water.

Answer:

an acid be diluted by distillation process.

which formula can be used to calculate the molar mass of ammonia

Answers

Answer:

Since there are 3 Hydrogen atoms present, the formula mass of H is 1.0 × 3 = 3.0 g/mol. Therefore, by adding them up, the formula mass of ammonia is: [14.0 g/mol + 3.0 g/mol] = 17.0 g/mol.

The limestone used in building the Egyptian pyramids was used because it is _____________
O soft and sticky
O easily melted
O hard and brittle

Answers

Answer:

hard and brittle

hope this helps you ☺️☺️

good night take care sweet dream

Easily melted


The answer is on here already but ya that’s the answer

The reduction of iron(III) oxide () to pure iron during the first step of steelmaking, ()()() is driven by the high-temperature combustion of coke, a purified form of coal: ()()() Suppose at the temperature of a blast furnace the Gibbs free energies of formation of and are and , respectively. Calculate the maximum mass of pure iron that can be produced by the combustion of of coke. Round your answer to significant digits.

Answers

Answer:

hello your question is incomplete attached below is the complete question

answer : To 2 significant digits = 5500 kg

Explanation:

Given

C(s) + O2 (g)  ----------> CO2  ( g )

mass of CO2 = 8.9 * 10^6 g

number of moles =  8.9 * 10^6 / 12  = 7.416 * 10 ^5  mol

same amount of moles is needed by O2 hence

attached below is the detailed  solution

3. Determine the enthalpy of formation for propane. 3C(s, gr) + 4H2(g) ---> C3H2(g) CzH3(g) AH = -2219.9 kJ C(s, gr) AH = -393.5 kJ H,(g) AH = -285.8 kJ a. -205.7 /mol b. -103.8 kJ/mol Å C. + 205.7 /mol d. + 103.8 /mol​

Answers

Answer:

b I hope this is right good luck

what is the difference between an acid and a base?

Answers

Answer:

A substance, mostly liquid that donates a proton or accepts an electron pair in reactions. An acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions in aqueous solution, donates electrons and accepts protons.

[tex]{\underline{\underline{\bf{\red{\:\:Acid\:\:}}}}}[/tex]

Proton donor and electron pair acceptorIt can increase the concentration of H+ ion in aq. solution.pH value is <7Turn blue litmus paper into redAcid reacts with bases to form saltsAcid taste sour

[tex]{\underline{\underline{\bf{\orange{\:\:Base\:\:}}}}}[/tex]

Proton acceptor and electron pair donorIt can increase the concentration of OH- ion in aq. solution.pH value is >7Turn red litmus paper into blueBases reacts with acids to form saltsBases taste soapy

Why do we test for free chlorine in drinking water?

Answers

Answer:

The presence of free chlorine in drinking water is correlated with the absence of most disease-causing organisms, and thus is a measure of the potability of water

A 15.0 mL solution of Sr(OH)₂ is neutralized with 21.1 mL of 0.350 M HCl. What is the concentration of the original Sr(OH)₂ solution?

Answers

Answer:

0.246 M

Explanation:

The reaction that takes place is:

Sr(OH)₂ + 2HCl → SrCl₂ + 2H₂O

First we calculate how many HCl moles reacted, using the given volume and concentration:

0.350 M * 21.1 mL = 7.385 mmol HCl

Then we convert HCl moles into Sr(OH)₂ moles, using the stoichiometric coefficients of the balanced reaction:

7.385 mmol HCl * [tex]\frac{1mmolSr(OH)_2}{2mmolHCl}[/tex] = 3.692 mmol Sr(OH)₂

Finally we calculate the concentration of the original Sr(OH)₂ solution:

3.692 mmol Sr(OH)₂ / 15.0 mL = 0.246 M
Other Questions
Suri makes $15 per hour and gets a weekly bonus of $25. Juan makes $14 per hour and gets a weekly bonus of $50. Is it possible for Suri and Juan to make the same amount of wages, y, by working the same number of hours, x, in one week? Yes, because the slopes of the equations are different so the system of equations will have one solution. No, because the slopes of the equations are different so the system of equations will have no solutions. Yes, because the slopes of the equations are the same so the system of equations will have infinitely many solutions. No, because the slopes of the equations are the same so the system of equations will have no solutions. Stars ----- Planets Alike and Different Carl's grandfather is exactly 5 times older than Carl. Which three statements must be true? 1 SEE ANSWER Find the inverse of each function1. f(x) = 4/(x+2) - 22. f(x)= -2x^5 - 3 Which choice represents the simplified exponential expression? (11^-2)^7PLEASE HELP!!! What happens AFTER the battle between Odysseus and the Cicones? Select all of the following substances that can be addicting. Samantha has 52 jelly beans. She decides that she will eat 4 jelly beans per minute, and she wants to create an expression that represents how many jelly beans she has left after x minutes. Which of the following expressions correctly models this situation?Select one:A. 4x + 52B. x + 52C. -x + 52D. -4x + 52~and also if whoever answers doesn't mind, please put an actual explanation since I just wanna be able to fully understand the concept! It would be greatly appreciated! ~ Giving brainliest to the best answer :) Write the ratio 1.5:9 in simplest form. HELPPPP PLSSSSPLSSS PLS I NEED HELL Jewish people were removed from their homeland to other places;African were removed from their homeland through slavery. What is theword for this forced move 1. This question has two parts. First, answer Part A. Then, answer Part B. Part A Which Words describe Ling? Circle all that apply. A. conscientious B. cowardly C. deceitful D. courageous E. boastful F. honestPart BWhich excerpts from the story BEST support your answers to Part A? Choose ALL that apply.A. Standing at the emperor's site, a poor young man named Ling held his hand out to receive the first seed.B. Ling planted the seed deep in the fertole Earth and watered it everyday but after 3 weeks of constant care he saw no sign of life.C. Trembling, Ling walked to the front of the room and bowed to the emperor.D. Ling was certain he was dreaming.E. "Ling was the only one with the courage to be honest, and therefore he is the new emperor!" GIVING 43 POINTS AND BRAINLIEST FOR THE FIRST PERSON THAT ANSWERS AND IS CORRECT!!Translate the following expression9 more than a numberA. 9rB. 9 + wC. 9kD. 9x 4) Graph f(x) 2(3)*. Compare the graph to thegraph of the parent function. Describe the domainand range of f. Please help me with this ASAP ASAP please please help 7.17 x 10' and 8.17 x 1067 Respond if you have seen ateez song fireworks,I'm the one. 6. What did Hitler do to the blonde journalist man who wrote articles against Hitler?Need some help Anthony starts with $400 in his bank account. Over the course of a week, he withdraws $50, deposits $70, and withdraws $20. How much money is in his account? show your work, please