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
Vitek1552 [10]
3 years ago
8

A 10.0 L tank contains 0.329 kg of helium at 28.0 ∘C. The molar mass of helium is 4.00 g/mol . Part A How many moles of helium a

re in the tank? Express your answer in moles.
Physics
1 answer:
nadya68 [22]3 years ago
8 0

Answer:

82.25 moles of He

Explanation:

From the question given above, the following data were obtained:

Volume (V) = 10 L

Mass of He = 0.329 Kg

Temperature (T) = 28.0 °C

Molar mass of He = 4 g/mol

Mole of He =?

Next, we shall convert 0.329 Kg of He to g. This can be obtained as follow:

1 Kg = 1000 g

Therefore,

0.329 Kg = 0.329 Kg × 1000 g / 1 Kg

0.329 Kg = 329 g

Thus, 0.329 Kg is equivalent to 329 g.

Finally, we shall determine the number of mole of He in the tank. This can be obtained as illustrated below:

Mass of He = 329 g

Molar mass of He = 4 g/mol

Mole of He =?

Mole = mass / molar mass

Mole of He = 329 / 4

Mole of He = 82.25 moles

Therefore, there are 82.25 moles of He in the tank.

You might be interested in
Light passes through a pair of narrow slits with a 0.67-mm separation. It is found that the fourth bright fringe makes an angle
babunello [35]

Answer:

The wavelength of the light is 555 nm.

Explanation:

according to Bragg's law..

n×λ = d×sin(θ)

n is the fringe number

λ is the wavelength of the light

d is the slit separation

θ is the angle the light makes with the normal at the fringe.

7 0
3 years ago
The universe is made up of
sasho [114]
The universe is made up of baryonic matter.(neutrons,electrons,protons)
5 0
3 years ago
Which of these objects has kinetic energy?
Damm [24]

Answer:

A ball moving through the air.

Explanation:

The ball has momentum which is a form of kinetic energy.

I don't know if that is correct, but I hope it helps!!!!

3 0
3 years ago
Read 2 more answers
. Two people are pushing a car of mass 2000 kg.
Viktor [21]

Answer:

two people who are not going to be able to make it to class today because of the day and then I will be there at the house and then we can go

5 0
3 years ago
An object that is completely or partially submerged in fluid experience an upward force called?​
romanna [79]
The buoyant force or upward buoyancy force
8 0
2 years ago
Other questions:
  • Development of the Grand Canyon through the uplift of the plateau and erosion by the Colorado River illustrates that:
    13·2 answers
  • Would the weight density of water be different on the moon than it is on earth?
    5·1 answer
  • Carbon dioxide is a gas produced by___ and used by ___
    5·1 answer
  • A parallel plate capacitor is connected to a battery that maintains a constant potential difference between the plates. If the p
    6·1 answer
  • A small block has constant acceleration as it slides down a frictionless incline. The block is released from rest at the top of
    9·1 answer
  • How does the steepness of the line on a speed graph relate to the objects speed
    7·1 answer
  • In our usual coordinate system( +x to the right, +y up (away from the center of the Earth), +z out of the page toward you), what
    15·1 answer
  • a) A bus of mass 760 kg requires 120 m to reach certain velocity value Vf. Ignore friction and drag forces and assume the bus en
    6·1 answer
  • A car starts from rest and accelerates to a speed of 30 m/s in a time of
    6·1 answer
  • NEED BOTH QUESTIONED ANSWERED ASAP.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!