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
BARSIC [14]
3 years ago
8

What is the volume of 0.04 mol of a gas at 0.9 kPa and 20°C?

Chemistry
2 answers:
Firdavs [7]3 years ago
8 0

Answer:

The correct answer is option A.

Explanation:

Pressure of the gas ,P=  0.9 kPa = 0.008882 atm

1 kPa = 0.0098 atm

Number of moles gases = n  = 0.04 mol

Temperature of the gas ,T =20°C = 293 K

Volume of the gas = V

Using An Ideal gas equation:

PV=nRT

V=\frac{nRT}{P}=\frac{0.04 mol\times 0.0820 atm L/mol K\times 293 K}{0.008882 atm}=108.20 L\approx 108 L

Hence, the correct answer is option A.

Annette [7]3 years ago
7 0
A. 108 L is the winner!
You might be interested in
Name an element which matches the description
ikadub [295]

1) Uranium

2) Carbon in the form of graphite

3) Palladium

Explanation:

1) In the nuclear reactor the fuel is represented by some uranium isotopes which are easily fissionable.

2) Graphite is made from carbon sheets in which there are free electrons that are moving freely so the carbon, in this form, is able to conduct electricity.

3) Commonly inert electrodes are made from platinum (Pt) or gold (Au) metals, because of the propriety of this metals to not interact chemically very easily with various substances.

Learn more:

uranium isotopes

brainly.com/question/9099776

graphite

brainly.com/question/8853712

inert electrodes

brainly.com/question/9822656

6 0
3 years ago
The energy powering the movements of molecules is referred to as the ______ of the system.
bagirrra123 [75]
The answer to the question asked  above is heat energy<span> .


</span><span>The energy powering the movements of molecules is referred to as the heat energy of the system.</span>

Hope my answer would be a great help for you.    If you have more questions feel free to ask here at Brainly.
6 0
3 years ago
The table below shows two types of electromagnetic waves and three random applications of electromagnetic waves.
Reptile [31]
Correct Answer is 1 i.e. Gamma rays—2 and radio waves—3

Reason: 
1) In a hypernova, star<span> as similar to </span>nuclear fusion<span> converts lighter elements into heavy elements. If fusion is not capable of generating enough pressure to counteract gravity, star immediately collapses to form a </span>black hole<span>. During this process, energy will be released, along the axis of rotation to form </span>gamma-ray burst. Such gamma-ray burst was first detected using <span>Fermi Gamma-ray Space Telescope. Thus, gamma-ray is capable of providing information of gravity fields.

2) Radiowaves are capable of inducing transitions that requires less energies. These transition includes nuclear excitation and electron excitation (in rotational energy level). Depending upon the value to Jmax, it is possible to determine the temperature and </span><span>heat released by astronomical objects</span><span>
</span>
4 0
3 years ago
Read 2 more answers
A gas made up of homonuclear diatomic molecules escapes through a pinhole times as fast as gas. Write the chemical formula of th
Art [367]

Answer:

The answer to the question is

Chlorine Cl₂

Explanation:

Graham's Law of effusion states that the rate of effusion of  a gas is inversely proportional to the square root of the molar mass

\frac{R_{1} }{R_{2}} = \sqrt{ \frac{M_{2}}{M_{1}} }

0.238 = \sqrt{ \frac{4}{M_{1}} }

Therefore M₁ = 4÷0.238² = 70.61

Hence the mass of the gas is 70.61, that is X₂ = 70.61  or the molar mass of the element X = 70.61÷2 = 35.308 ≅35.453 Hence the gas is chlorine Cl₂

6 0
3 years ago
How many grams of hydrogen are in 46 g of CH40?<br>​
Romashka [77]

Answer:

5.8 grams of hydrogen

Explanation:

Your welcome

6 0
2 years ago
Read 2 more answers
Other questions:
  • Does the solubility of a substance increase as its temperature increases
    5·1 answer
  • Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. fo
    13·1 answer
  • Which of the following is not a part of kinetic molecular theory?
    8·2 answers
  • What are some examples of neutron?
    8·1 answer
  • (Brainliest) Please Help! Please do not give me a random, gibberish answer or I will report you and give you a low rating theref
    8·1 answer
  • PLS ANSWER!! ASAP!! 10 POINTS!!
    9·1 answer
  • 13. If a man has a mass of 83 kilograms on Earth, what will the force of gravity on his body be on the moon?
    13·2 answers
  • Based on the crystal- field strength cl-
    11·1 answer
  • Were there any finches that could access more than one food source? If so, which ones?
    14·1 answer
  • 49. How much precipitate would result if you have 50 grams of NaCl at 10 degrees Celsius and its cooled to saturation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!